{"id":6466,"date":"2016-02-27T02:57:40","date_gmt":"2016-02-27T01:57:40","guid":{"rendered":"http:\/\/eo.aei.mpg.de\/en\/?page_id=6466"},"modified":"2016-02-27T03:24:54","modified_gmt":"2016-02-27T02:24:54","slug":"complete_spotlights","status":"publish","type":"page","link":"https:\/\/www.einstein-online.info\/en\/complete_spotlights\/","title":{"rendered":"Complete Spotlights"},"content":{"rendered":"<div class=\"category_special\">Black holes, cosmology, gravitational waves &#8211; our &#8220;Spotlights on Relativity&#8221; section invites you to take a look at some of the many facets of relativity. The following is a complete list of all our current spotlight texts. All but a few of these texts are completely independent of each other, so you can browse to your heart&#8217;s content &#8211; it would help, however, if you already had some previous ideas about relativity, on the level of our introduction Elementary Einstein.<\/div>\n\n<h2>Special relativity<\/h2>\n<div class=\"category_sub_p\">More about the foundations and applications of special relativity<\/div>\n<div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/nobel\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_SRT_12_Noble_Relativitaet_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online-1.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/nobel\/\">Einstein&#8217;s Nobel heritage<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>An overview of Nobel prizes connected with relativistic physics<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/nobel\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/light-clocks-time-dilation\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_SRT_3_Von_der_Lichtuhr_zur_Zeitdilatation_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online-1.jpg-1.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/light-clocks-time-dilation\/\">From light clocks to time dilation<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>A simple thought experiment with light clocks \u2013 clocks in which light keeps stroke \u2013 allows the derivation of time dilation.<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/light-clocks-time-dilation\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/binding_energy\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_SRT_7_Ist_das_Ganze_die_Summe_seiner_Teile_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/binding_energy\/\">Is the whole the sum of its parts?<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>Why Einstein&#8217;s famous formula tells us that the whole, as far as mass is concerned, is often less than the sum of its parts<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/binding_energy\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/relativity-satellite-navigation\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/relativity-satellite-navigation\/\">Relativity and satellite navigation<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>How to determine your position using radio signals and satellites \u2013 and what the theories of relativity have to do with it<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/relativity-satellite-navigation\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/now\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_SRT_2_Die_Unselbstverstaendlichkeit_des_Jetzt_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/now\/\">The definition of &#8220;now&#8221;<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>Why it is necessary to define simultaneity, and how best to go about defining it.<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/now\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/doppler\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_SRT_Wellen_in_Bewegung_der_Dopplereffekt_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/doppler\/\">Waves, motion and frequency: the Doppler effect<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>How motion influences waves, or other kinds of ever-repeating signals, in classical physics and in special relativity.<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/doppler\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/atombombe\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_SRT_11_Von_Emc-Quadrat_zur_Atombombe_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/atombombe\/\">From E=mc\u00b2 to the atomic bomb<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>The subtle connections between Einstein&#8217;s formula, nuclear fission and nuclear fusion<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/atombombe\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/dialectic\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_SRT_1_Die_Dialektik_der_Relativitaet_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/dialectic\/\">The dialectic of relativity<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>How relativity can reconcile statements that, at first glance, appear to be contradictory<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/dialectic\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/time-with-radio-signals\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_SRT_9_Zeitbestimmung_mit_Radiosignalen_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/time-with-radio-signals\/\">Time determination with radio signals &#8211; from radio-controlled clocks to satellite navigation<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>How to determine the exact time anytime and anywhere with the help of a radio receiver (and some additional information)<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/time-with-radio-signals\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/time_dilation_road\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_SRT_4_Zeitdilatation_und_Wanderschaft_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/time_dilation_road\/\">Time dilation on the road<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>How you can picture the relativity of simultaneity and time dilation, using a simple geometric analogy<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/time_dilation_road\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/how-time-is-made\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/SRT_how_time_is_made_world_time_clock_coordination_graphic_Andreas_Bauch_PTB_Redesign_Daniela_Leitner_Einstein-Online-1-e1616760293738.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/how-time-is-made\/\">How time is made<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>How the internationally valid coordinated universal time UTC is determined \u2013 and what role the theory of relativity plays in it<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/how-time-is-made\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/twins\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_SRT_5_Die_problematischen_Zwillinge_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/twins\/\">The case of the travelling twins<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>Why the so-called &#8220;twin paradox&#8221; isn&#8217;t really a paradox <\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/twins\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/twinsroad\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_SRT_6_Zwillinge_und_Wanderer_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online-1.jpg-1.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/twinsroad\/\">Twins on the road<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>How one can picture the situation of the travelling twin, using a simple geometric analogy<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/twinsroad\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div>\n<div class=\"clear\"><\/div>\n<h2>General relativity<\/h2>\n<div class=\"category_sub_p\">Concepts and applications of general relativity<\/div>\n<div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/nobel\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_SRT_12_Noble_Relativitaet_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online-1.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/nobel\/\">Einstein&#8217;s Nobel heritage<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>An overview of Nobel prizes connected with relativistic physics<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/nobel\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/measuring-light-deflection-with-radio-telescopes\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Radiowellen_Quasar_Antennen_by_Daniela_Leitner_und_Markus_Poessel_Einstein-Online.gif\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/measuring-light-deflection-with-radio-telescopes\/\">Measuring light deflection with radio telescopes<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>Very long baseline interferometry (VLBI) can be used to measure deflection of light by the sun with very high accuracy, which allows the testing of a prediction of general relativity.<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/measuring-light-deflection-with-radio-telescopes\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/multi-messenger-astrophysics\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Featured-Image-_-Shibata_-Multi-Messenger2.png\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/multi-messenger-astrophysics\/\">Multi-messenger astrophysics and numerical relativity<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>During neutron star mergers, both gravitational wave and electromagnetic signals are emitted. This could help solve long-standing issues in basic physics research with multi-messenger astrophysics.<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/multi-messenger-astrophysics\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/the-singularity-theorem\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Penrose_Fig2-e1605181789101.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/the-singularity-theorem\/\">The Singularity Theorem (Nobel Prize in Physics 2020)<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>In 2020, Roger Penrose was awarded half of the Nobel prize in physics for proving that black hole formation is a robust prediction of Einstein&#8217;s general theory of relativity.<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/the-singularity-theorem\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/From-force-to-field\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_ART_16_Von_der_Kraft_zum_Feld_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online-1.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/From-force-to-field\/\">From force to field<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>About fields \u2013 a central concept that is relevant not only for gravitational physics<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/From-force-to-field\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/soap_bubbles\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_ART_17_Einstein_und_die_Seifenblasen_\u00a9_daniele-levis-pelusi-unsplash_Redesign_Daniela_Leitner_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/soap_bubbles\/\">From soap bubbles to Einstein<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>Most readers will know them from childhood: soap bubbles<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/soap_bubbles\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/light_deflection\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_ART_8_Lichtablenkung_durch_Gravitation_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/light_deflection\/\">Gravitational deflection of light<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>On one of the fundamental consequences of general relativity: the deflection of light by gravity<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/light_deflection\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/mass_and_more\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_ART_6_Masse_und_mehr_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/mass_and_more\/\">Mass and more<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>An account of which physical properties act as sources of gravity &#8211; includes consequences for collapsing stars and for cosmology<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/mass_and_more\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/relativity-satellite-navigation\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/relativity-satellite-navigation\/\">Relativity and satellite navigation<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>How to determine your position using radio signals and satellites \u2013 and what the theories of relativity have to do with it<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/relativity-satellite-navigation\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/singularities\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/ART_12_Raumzeitsingularitaeten_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/singularities\/\">Spacetime singularities<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>Information about the most disturbing feature of Einstein&#8217;s theory &#8211; ragged edges of spacetime known as singularities. <\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/singularities\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/postnewton\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/postnewton\/\">Step by step from Newton to Einstein<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>How the discrepancies of Newton&#8217;s and Einstein\u2019s theories \u2013 and the transition from one theory to the other \u2013 can be systematically recorded.<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/postnewton\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/equivalence_principle\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_ART_1_Kabine_Schwerkraft_und_Rakete_Das_Aequivalenzprinzip_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online-1.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/equivalence_principle\/\">The elevator, the rocket, and gravity: the equivalence principle<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>Information about the principle that Einstein took as a starting point for developing his general theory of relativity<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/equivalence_principle\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/hydrodynamics_realm\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_ART_18_Relativistische_Hydrodynamik_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/hydrodynamics_realm\/\">The realm of relativistic hydrodynamics<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>Modeling relativistic fluids and the phenomena associated with them &#8211; from supernovae and jets to merging neutron stars<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/hydrodynamics_realm\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/scalar-tensor\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/ART_19_Varying_Newtons_constant-A_personal_history_of_scalar-tensor_theories_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/scalar-tensor\/\">Varying Newton\u2019s constant: A personal history of scalar-tensor theories<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>Information about a modification of Einstein&#8217;s theory of general relativity in which the gravitational constant is not a constant. <\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/scalar-tensor\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/A-Test-Bed-for-the-General-Theory-of-Relativity\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_ART_15_Ein_Pruefstand_fuer_die_Allgemeine_Relativitaetstheorie_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/A-Test-Bed-for-the-General-Theory-of-Relativity\/\">A Test Bed for the General Theory of Relativity<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>A model allows to describe systematically how well (or poorly) Einstein&#8217;s theory agrees with observations.<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/A-Test-Bed-for-the-General-Theory-of-Relativity\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div>\n<div class=\"clear\"><\/div>\n<h2>Gravitational waves<\/h2>\n<div class=\"category_sub_p\">More about gravitational waves, how they are produced and how they can be detected<\/div>\n<div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/continuousGW\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/97797main_Millisec-Pulsar-Garvitywa1-e1626165765932.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/continuousGW\/\">Continuous gravitational waves<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>A vast population of a hundred million stellar remnants is hidden in the depths of our Galaxy. While we may never observe them in the electromagnetic spectrum, we might discover them through their gravitational-wave emission.<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/continuousGW\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/o3\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/O3_Bild_dt-Kopie-e1604053554363.png\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/o3\/\">Gravitational wave detectors find 56 potential cosmic collisions<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>During collaborative measurement campaigns, so-called observation runs, the worldwide gravitational wave detector network listens for signals from space. During the third observation run &#8220;O3&#8221;, which started on April 1st, 2019, the LIGO detectors (USA), Virgo (Italy), and GEO600 (Germany) recorded a range of promising signals.<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/o3\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/gowdy_st\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Gravitational_waves_11_Of_gravitational-waves_and_spherical_chickens_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/gowdy_st\/\">Of gravitational waves and spherical chickens<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>Information about a class of simple model universes, each an expanding cosmos filled with gravitational waves<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/gowdy_st\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/gw_waves\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Gravitationswellen_Die_Wellennatur_der_Gravitationswellen_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online-1.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/gw_waves\/\">The wave nature of simple gravitational waves<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>A closer look at the way that simple gravitational waves propagate through space with time<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/gw_waves\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/3-generation-gw-detectors\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/ET-2020-square-scaled.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/3-generation-gw-detectors\/\">Third-generation gravitational-wave detectors<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>Starting in the 2030s, third-generation gravitational-wave observatories will eavesdrop on space. They are many times more sensitive than current detectors and could thus provide a range of new insights into the invisible side of the universe.<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/3-generation-gw-detectors\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/gw_detectors\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Gravitationswellen_Detektoren_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online-updated-1-e1606987647610.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/gw_detectors\/\">Listening posts around the globe<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>Overview of the gravitational wave detectors currently operational, or under construction<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/gw_detectors\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/lisa\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/lisa-gw-final_1920.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/lisa\/\">Observing gravitational waves in space with LISA<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>In 2035, the Laser Interferometer Space Antenna (LISA) is scheduled to be launched into space as a mission of the European Space Agency (ESA). It will observe previously inaccessible gravitational waves from a large range of new sources.<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/lisa\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/eah\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Gravitationswellen_7_Einstein@home-1.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/eah\/\">Einstein@Home &#8211; gravitational waves for everybody<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>Information on how you personally can help with the search for gravitational wave &#8211; by donating processing time on your private computer <\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/eah\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/gw_intdetector\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Gravitationswellen_6_Licht_als_Masstab_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/gw_intdetector\/\">Catching the wave with light<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>Some information on how interferometric detectors such as LIGO or GEO600 work<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/gw_intdetector\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/gw_resdetectors\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Gravitationswellen_10_schwingende_Koerper.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/gw_resdetectors\/\">Small vibrations<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>Some information on how the vintage models among gravitational wave detectors work &#8211; resonant detectors <\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/gw_resdetectors\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/lisa-2010\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Gravitationswellen_11_eLISA_Horchposten_im_All_\u00a9_AEI_Milde_Marketing_Exozet_fuer_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/lisa-2010\/\">LISA &#8211; Hunting waves in space<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>Information about the latest version of the most ambitious gravitational wave project &#8211; a detector in space. <\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/lisa-2010\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/chirping_neutron_stars\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Gravitationswellen_2_Das_Zirpen_der_Neutronensterne_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/chirping_neutron_stars\/\">Chirping neutron stars<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>For some gravitational wave signals, one can go beyond graphs and animations &#8211; they can be made audible <\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/chirping_neutron_stars\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/observation-of-gravitational-waves-from-a-binary-black-hole-merger\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Gravitationswellen_3_Beobachtung_der_Gravitationswellen_von_der_Verschmelzung_zweier_Schwarzer_Loecher_\u00a9_LIGO_redesign_Daniela_Leitner_for_Einstein-Online_2.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/observation-of-gravitational-waves-from-a-binary-black-hole-merger\/\">Observation of Gravitational Waves from a Binary Black Hole Merger<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>Albert Einstein predicted their existence back in 1916, and on 14 September 2015 they were directly detected for the first time: Gravitational waves. Two large interferometric detectors of the LIGO Scientific Collaboration with major contributions from German researchers detected the signal known as &#8220;GW150914&#8221;. The waves originate from the merger of two black holes and are the first direct observation of these exotic objects.<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/observation-of-gravitational-waves-from-a-binary-black-hole-merger\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/galactic-binaries\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Gravitationswellen_4_Wei\u00dfe_Zwerg-Doppelsterne_als_Gravitationswellenquelle_\u00a9_Modelldaten-von-G.-Nelemans_fuer_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/galactic-binaries\/\">White Dwarf binaries as gravitational wave sources<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>White Dwarf binaries, their properties, and the role they will play for the planned space-borne gravitational wave detector LISA.<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/galactic-binaries\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/Interferometric-gravitational-wave-detectors\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Gravitationswellen_5_Interferometrische-Gravitationswellendetektoren_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online-2.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/Interferometric-gravitational-wave-detectors\/\">Interferometric gravitational wave detectors<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>All modern gravitational wave detectors are based on the principle of a Michelson interferometer. But how exactly does it work?<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/Interferometric-gravitational-wave-detectors\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div>\n<div class=\"clear\"><\/div>\n<h2>Black Holes &amp; Co.<\/h2>\n<div class=\"category_sub_p\">Black holes, neutron stars and supernovae: Flight into a black hole, the black hole in the center of the Milky Way, how many different kinds of black hole are there, how black holes light up their neighbourhood<\/div>\n<div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/eht\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/bhsgra-scaled.webp\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/eht\/\">How the Event Horizon Telescope observes black holes<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>Researchers use the Event Horizon Telescope to observe black holes at the centers of galaxies with high resolution.<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/eht\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/multi-messenger-astrophysics\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Featured-Image-_-Shibata_-Multi-Messenger2.png\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/multi-messenger-astrophysics\/\">Multi-messenger astrophysics and numerical relativity<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>During neutron star mergers, both gravitational wave and electromagnetic signals are emitted. This could help solve long-standing issues in basic physics research with multi-messenger astrophysics.<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/multi-messenger-astrophysics\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/the-singularity-theorem\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Penrose_Fig2-e1605181789101.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/the-singularity-theorem\/\">The Singularity Theorem (Nobel Prize in Physics 2020)<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>In 2020, Roger Penrose was awarded half of the Nobel prize in physics for proving that black hole formation is a robust prediction of Einstein&#8217;s general theory of relativity.<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/the-singularity-theorem\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/vlti\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/eso2119c.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/vlti\/\">Deep looks into the center of the Milky Way<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>The black hole at the center of our galaxy reveals itself through the stellar motions in its vicinity. With the Very Large Telescope Interferometer, these motions can be observed with high precision.<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/vlti\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/descent_bh\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Schwarze_Loecher_und_Co_1_Schritt_fuer_Schritt_ins_Schwarze_Loch_1_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/descent_bh\/\">Descent into a black hole<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>The story of an expedition&#8217;s closer and closer approach to a black hole &#8211; too close?<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/descent_bh\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/bh_uniqueness\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Schwarze_Loecher_und_Co_5_Wie_viele_Schwarze_Loecher_gibt_es_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/bh_uniqueness\/\">How many different kinds of black holes are there?<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>Once they have settled down, there are actually only very few different kinds of black hole &#8211; find out which, and how black holes shed other distinguishing marks. <\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/bh_uniqueness\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/angular_momentum\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Schwarze_Loecher_und_Co_8_Was_Eiskunstaeufer_Planeten_und_Neutronensterne_gemeinsam_haben_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/angular_momentum\/\">What figure skaters, orbiting planets and neutron stars have in common<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>Some information about what is called the conservation of angular momentum, and its consequences for neutron stars, black holes and the matter disks around them <\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/angular_momentum\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/thermal_radiation\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Schwarze_Loecher_und_Co_9_Warum_man_Waerme_sehen_kann_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/thermal_radiation\/\">Heat that meets the eye<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>The connection between temperature and the emission of electromagnetic radiation, as well as the consequences for stars, matter disks around black holes, and cosmology <\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/thermal_radiation\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/accretion\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Schwarze_Loecher_und_Co_2_Gluehende_Scheiben_Wie_Schwarze_Loecher_ihre_Nachbarschaft-zum_Leuchten_bringen_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/accretion\/\">Luminous disks: How black holes light up their surroundings<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>How the fact that black holes are very efficient in attracting surrounding matter leads to some of the most spectacularly luminous phenomena in the whole of the cosmos<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/accretion\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/bh_xray\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Schwarze_Loecher_und_Co_4_Aktive_Schwarze_Loecher_Ultraheisse_Leuchtfeuer_im_All_\u00a9_Andreas_Mueller_MPE_Redesign_Daniela_Leitner.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/bh_xray\/\">Active black holes: Ultra-hot cosmic beacons<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>What astronomers can see once a black hole has heated up its cosmic neighbourhood, stimulating it to emit bright radiation<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/bh_xray\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/changing_places\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Schwarze_Loecher_und_Co_7_Rollentausch_von_Raum_und_Zeit_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/changing_places\/\">Changing places &#8211; space and time inside a black hole<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>How, in one sense, space and time switch their roles inside a black hole &#8211; and why this leads to a black hole&#8217;s most characteristic property, namely that nothing can get out <\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/changing_places\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/accelerators_bh\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Schwarze_Loecher_und_Co_6_Schwarze_Loecher_in_Teilchenbeschleunigern_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/accelerators_bh\/\">Particle accelerators as black hole factories?<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>The intriguing possibility that the next generation of particle accelerators might produce &#8211; and allow the detection of &#8211; miniature black holes <\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/accelerators_bh\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/milkyway_bh\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Schwarze_Loecher_und_Co_3_Im_Herzen_der_Milchstra\u00dfe_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/milkyway_bh\/\">The dark heart of the Milky Way<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>Information about the closest supermassive black hole &#8211; the central object of our own galaxy <\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/milkyway_bh\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div>\n<div class=\"clear\"><\/div>\n<h2>Cosmology<\/h2>\n<div class=\"category_sub_p\">The big bang and all the rest: The geometry of the universe, the formation of the first light chemical elements, cosmology and quantum gravity<\/div>\n<div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/big_bangs\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Kosmologie_1_Der_doppelte_Urknall_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/big_bangs\/\">A tale of two big bangs<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>In cosmology, &#8220;big bang&#8221; has two different meanings &#8211; and if you want to understand what&#8217;s going on, you should be aware of that difference. <\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/big_bangs\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/bbn\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Kosmologie_7_Elemententstehung-im_fruehen_Universum_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/bbn\/\">Big Bang Nucleosynthesis: Cooking up the first light elements<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>How the first nuclei of helium, lithium and other light elements were cooked up shortly after the big bang<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/bbn\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/cosmic_sound\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Kosmologie_4_Kosmischer_Schall_und_die_Kruemmung_des_Raums_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/cosmic_sound\/\">Cosmic Sound: Curvature and the cosmic background radiation<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>How the spatial geometry of the universe can be derived by observing the cosmic background radiation<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/cosmic_sound\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/quantum_cosmo_path_integrals\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Kosmologie_8_Die_Suche_nach_dem_Quanten-Anfangszustand_des_Universums_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/quantum_cosmo_path_integrals\/\">Searching for the quantum beginning of the universe<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>About attempts to understand the beginning of our universe using different approaches to quantum gravity<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/quantum_cosmo_path_integrals\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/avoiding_the_big_bang\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Kosmologie_9_Den_Urknall_ueberspringen_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/avoiding_the_big_bang\/\">Avoiding the big bang<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>The collapsing and then re-expanding quantum universe that loop quantum gravity offers as a replacement of the standard big bang models<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/avoiding_the_big_bang\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/bbn_phys\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Kosmologie_6_Gleichgewicht_und_Veraenderung_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/bbn_phys\/\">Equilibrium and Change: The physics behind Big Bang Nucleosynthesis<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>The physics behind Big Bang Nucleosynthesis, the period shortly after the big bang that saw the first production of light elements such as helium and lithium <\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/bbn_phys\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/thermal_radiation\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Schwarze_Loecher_und_Co_9_Warum_man_Waerme_sehen_kann_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/thermal_radiation\/\">Heat that meets the eye<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>The connection between temperature and the emission of electromagnetic radiation, as well as the consequences for stars, matter disks around black holes, and cosmology <\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/thermal_radiation\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/shape_of_space\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Kosmologie_2_Die_Form_des_Raums_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/shape_of_space\/\">The shape of space<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>The different space geometries allowed by the big bang models &#8211; do we live on a hypersphere?<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/shape_of_space\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/bbn_obs\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Kosmologie_5_Der_Blick_in_die_chemische_Vergangenheit_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/bbn_obs\/\">Elements of the past: Big Bang Nucleosynthesis and observation<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>How to reconstruct the abundances of light elements shortly after the big bang, and thus test some important predictions of the big bang models against observation<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/bbn_obs\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/building_blocks\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Kosmologie_10_Die_gebaendigte_Dichte_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/building_blocks\/\">Taming infinity with loops<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>How loop quantum gravity could replace the absurd state of infinite density, the big bang with which, according to Einstein&#8217;s relativity, the universe began<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/building_blocks\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/mathematical_universe\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Kosmologie_3_Der_mathematische_Kosmos_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/mathematical_universe\/\">The mathematical universe<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>Why cosmology is not only a matter for astronomers and physicists, but also for mathematicians<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/mathematical_universe\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div>\n<div class=\"clear\"><\/div>\n<h2>Relativity and the Quantum<\/h2>\n<div class=\"category_sub_p\">Relativistic quantum theory, string theory, loop quantum gravity and other attempts to unify Einstein&#8217;s gravitation with quantum theory; the uses of extra dimensions; quantum gravity and the big bang<\/div>\n<div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/path_integrals\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Relativitaet_und_Quanten_8_Auf_allen_moeglichen_Wegen_zum_Ziel_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/path_integrals\/\">The sum over all possibilities: The path integral formulation of quantum theory<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>About the path integral approach to quantum theory <\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/path_integrals\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/background_independence\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Relativitaet_und_Quanten_1_Hintergrundunabh\u00e4ngigkeit_und_Quantengravitation_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online-1.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/background_independence\/\">Actors on a changing stage: quantum gravity and background independence<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>The principle of background independence &#8211; space and time are no fixed structure, but take part in the dynamical evolution of the world &#8211; and its consequences for the problem of quantum gravity<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/background_independence\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/hiding_extra_dimensions\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Relativitaet_und_Quanten_2_Extradimensionen\u2013und-wie_man_sie_versteckt_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/hiding_extra_dimensions\/\">Extra dimensions &#8211; and how to hide them<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>Why our universe could possess dimensions beyond length, width and depth &#8211; and why those dimensions need not be noticeable in everyday life<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/hiding_extra_dimensions\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/quantum_cosmo_path_integrals\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Kosmologie_8_Die_Suche_nach_dem_Quanten-Anfangszustand_des_Universums_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/quantum_cosmo_path_integrals\/\">Searching for the quantum beginning of the universe<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>About attempts to understand the beginning of our universe using different approaches to quantum gravity<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/quantum_cosmo_path_integrals\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/avoiding_the_big_bang\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Kosmologie_9_Den_Urknall_ueberspringen_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/avoiding_the_big_bang\/\">Avoiding the big bang<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>The collapsing and then re-expanding quantum universe that loop quantum gravity offers as a replacement of the standard big bang models<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/avoiding_the_big_bang\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/causal_sets\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Relativitaet_und_Quanten_7_Von_der_Ordnung_zur_Geometrie_Kausalmengen_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/causal_sets\/\">Geometry from order: causal sets<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>An overview of the causal set approach to a theory of quantum gravity<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/causal_sets\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/embeddedworld\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Relativitaet_und_Quanten_3_Die_eingebettete_Welt_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/embeddedworld\/\">The embedded universe<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>Is our three-dimensional world embedded in a higher-dimensional space? <\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/embeddedworld\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/accelerators_bh\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Schwarze_Loecher_und_Co_6_Schwarze_Loecher_in_Teilchenbeschleunigern_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/accelerators_bh\/\">Particle accelerators as black hole factories?<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>The intriguing possibility that the next generation of particle accelerators might produce &#8211; and allow the detection of &#8211; miniature black holes <\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/accelerators_bh\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/building_blocks\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Kosmologie_10_Die_gebaendigte_Dichte_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/building_blocks\/\">Taming infinity with loops<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>How loop quantum gravity could replace the absurd state of infinite density, the big bang with which, according to Einstein&#8217;s relativity, the universe began<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/building_blocks\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/extra_dimensions_force\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Relativitaet_und_Quanten_2_Extradimensionen_auf_der_Spur_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/extra_dimensions_force\/\">Hunting for extra dimensions<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>Ways of detecting extra dimensions &#8211; and why the fact that our earth orbits the sun is a relevant data point<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/extra_dimensions_force\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/extra_dimensions_simple\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Relativitaet_und_Quanten_5_Eine_Frage_der_Sichtweise_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/extra_dimensions_simple\/\">Simplicity in higher dimensions<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>Why matters that seem rather complicated might be much more simple in higher dimensions <\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/extra_dimensions_simple\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><div class=\"home_post_box col-md-6\">\r\n\t<div class=\"row\">\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/spin_networks\/\">\r\n\t\t\t\t<img decoding=\"async\" alt=\"\" class=\"wp-post-image\" src=\"https:\/\/www.einstein-online.info\/wp-content\/uploads\/Vertiefungsthemen_Relativitaet_und_Quanten_6_Webmuster_des_Raums_Spin-Netzwerke_\u00a9_Daniela_Leitner_Markus_Poessel_Einstein-Online.jpg\" \/>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t<div class=\"col-lg-5 offset-lg-1\">\r\n\t\t\t<h3>\r\n\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/spin_networks\/\">The fabric of space: spin networks<\/a>\r\n\t\t\t<\/h3>\r\n\t\t\t<p><p>The quantum structure of space according to loop quantum gravity<\/p>\n<\/p>\r\n\t\t\t<div class=\"home_post_read_cont\">\r\n\t\t\t\t<div class=\"home_post_read_line\"><\/div>\r\n\t\t\t\t<div class=\"home_post_read_text\">\r\n\t\t\t\t\t<a href=\"https:\/\/www.einstein-online.info\/en\/spotlight\/spin_networks\/\">\r\n\t\t\t\t\t\tread the spotlight ...\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div>\n<div class=\"clear\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>The following is a complete list of all our current spotlight texts. <\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":99,"comment_status":"closed","ping_status":"closed","template":"single-page.php","meta":{"footnotes":""},"class_list":["post-6466","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.einstein-online.info\/en\/wp-json\/wp\/v2\/pages\/6466","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.einstein-online.info\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.einstein-online.info\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.einstein-online.info\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.einstein-online.info\/en\/wp-json\/wp\/v2\/comments?post=6466"}],"version-history":[{"count":6,"href":"https:\/\/www.einstein-online.info\/en\/wp-json\/wp\/v2\/pages\/6466\/revisions"}],"predecessor-version":[{"id":6477,"href":"https:\/\/www.einstein-online.info\/en\/wp-json\/wp\/v2\/pages\/6466\/revisions\/6477"}],"wp:attachment":[{"href":"https:\/\/www.einstein-online.info\/en\/wp-json\/wp\/v2\/media?parent=6466"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}