You are here: Home Vertiefungsthemen Alle Vertiefungsthemen
Personal tools

Alle Vertiefungsthemen

Schwarze Löcher, Kosmologie, Gravitationswellen - die Relativitätstheorie hat viele Facetten. Hier finden Sie eine Gesamtübersicht unserer Vertiefungsthemen, die interessante Teilaspekte von Einsteins Erbe beleuchten - grob nach Themen sortiert. Die Texte bauen nicht aufeinander auf und laden zum Stöbern ein. Günstig wäre es freilich, wenn Sie schon eine ungefähre Idee von den Grundlagen der Relativitätstheorie mitbrächten, in etwa auf dem Niveau unserer Einführung Einstein für Einsteiger.

Spezielle Relativitätstheorie

Grundlagen und Allgemeines zur speziellen Relativitätstheorie

Allgemeines

The dialectic of relativity

The dialectic of relativity

How relativity can reconcile statements that, at first glance, appear to be contradictory

Read More…

Waves, motion and frequency: the Doppler effect

Waves, motion and frequency: the Doppler effect

How motion influences waves, or other kinds of ever-repeating signals, in classical physics and in special relativity.

Read More…

Spezielle Relativitätstheorie und Zeit

Mehr zu Gleichzeitigkeit, Zeitdilatation und den reisenden Zwillingen

The definition of "now"

The definition of "now"

Why it is necessary to define simultaneity, and how best to go about defining it.

Read More…

Time dilation on the road

Time dilation on the road

How you can picture the relativity of simultaneity and time dilation, using a simple geometric analogy

Read More…

The case of the travelling twins

The case of the travelling twins

Why the so-called "twin paradox" isn't really a paradox

Read More…

Twins on the road

Twins on the road

How one can picture the situation of the travelling twin, using a simple geometric analogy

Read More…

Energie und Masse

Hintergrundinformationen zur berühmtesten Formel der Physik

Is the whole the sum of its parts?

Is the whole the sum of its parts?

Why Einstein's famous formula tells us that the whole, as far as mass is concerned, is often less than the sum of its parts

Read More…

From E=mc² to the atomic bomb

From E=mc² to the atomic bomb

The subtle connections between Einstein's formula, nuclear fission and nuclear fusion

Read More…

Anwendungen

Einstein's Nobel heritage

Einstein's Nobel heritage

An overview of Nobel prizes connected with relativistic physics

Read More…

Allgemeine Relativitätstheorie

Grundlagen und Allgemeines zur allgemeinen Relativitätstheorie

Gravitationswellen

Mehr zu Gravitationswellen, ihrer Erzeugung und den Nachweismöglichkeiten

Grundlagen

The wave nature of simple gravitational waves

The wave nature of simple gravitational waves

A closer look at the way that simple gravitational waves propagate through space with time

Read More…

Gravitationswellenquellen

Chirping neutron stars

Chirping neutron stars

For some gravitational wave signals, one can go beyond graphs and animations - they can be made audible

Read More…

White Dwarf binaries as gravitational wave sources

White Dwarf binaries as gravitational wave sources

White Dwarf binaries, their properties, and the role they will play for the planned space-borne gravitational wave detector LISA.

Read More…

Auf dem Weg zum direkten Nachweis

Mehr zu Gravitationswellendetektoren auf der Erde und im Weltraum

Listening posts around the globe

Listening posts around the globe

Overview of the gravitational wave detectors currently operational, or under construction

Read More…

Einstein@Home - gravitational waves for everybody

Einstein@Home - gravitational waves for everybody

Informations about how you personally can help with the search for gravitational wave - by donating processing time on your private computer

Read More…

Catching the wave with light

Catching the wave with light

Some information on how interferometric detectors such as LIGO or GEO600 work

Read More…

Small vibrations

Small vibrations

Some information on how the vintage models among gravitational wave detectors work - resonant detectors

Read More…

eLISA - Hunting waves in space

eLISA - Hunting waves in space

Information about the latest version of the most ambitious gravitational wave project - a detector in space

Read More…

Observation of Gravitational Waves from a Binary Black Hole Merger

Observation of Gravitational Waves from a Binary Black Hole Merger

One hundred years ago, Albert Einstein predicted in his general theory of relativity the existence of gravitational waves. These ripples in space-time propagate at the speed of light and were directly observed for the very first time on September 14, 2015.

Read More…

Schwarze Löcher & Co

Schwarze Löcher, Neutronensterne und Supernovae

Schwarze Löcher aus der Nähe

The dark heart of the Milky Way

The dark heart of the Milky Way

Information about the closest supermassive black hole - the central object of our own galaxy

Read More…

Luminous disks: How black holes light up their surroundings

Luminous disks: How black holes light up their surroundings

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

Read More…

Active black holes: Ultra-hot cosmic beacons

Active black holes: Ultra-hot cosmic beacons

What astronomers can see once a black hole has heated up its cosmic neighbourhood, stimulating it to emit bright radiation

Read More…

Wie man kompakte Objekte nachweist

Mehr zum Schwereeinfluss von Schwarzen Löchern und Neutronensternen auf ihre direkte kosmische Umgebung, von abgelenkten Sternen bis zu Akkretionsscheiben und den damit verbundenen Leuchterscheinungen - aber auch zu der Möglichkeit, sie hier auf der Erde nachzuweisen

How many different kinds of black holes are there?

How many different kinds of black holes are there?

Once they have settled down, there are actually only very few different kinds of black hole - find out which, and how black holes shed other distinguishing marks.

Read More…

Particle accelerators as black hole factories?

Particle accelerators as black hole factories?

The intriguing possibility that the next generation of particle accelerators might produce - and allow the detection of - miniature black holes

Read More…

Changing places - space and time inside a black hole

Changing places - space and time inside a black hole

How, in one sense, space and time switch their roles inside a black hole - and why this leads to a black hole's most characteristic property, namely that nothing can get out

Read More…

Die Physik der Schwarzen Löcher

Descent into a black hole

Descent into a black hole

The story of an expedition's closer and closer approach to a black hole - too close?

Read More…

Hintergrundwissen

Nützliche physikalische Konzepte, um die Physik von Schwarzen Löchern und Neutronensternen besser zu verstehen.

What figure skaters, orbiting planets and neutron stars have in common

What figure skaters, orbiting planets and neutron stars have in common

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

Read More…

Heat that meets the eye

Heat that meets the eye

The connection between temperature and the emission of electromagnetic radiation, as well as the consequences for stars, matter disks around black holes, and cosmology

Read More…

Kosmologie

Der Urknall und die Folgen

Kosmische Hintergrundstrahlung

Avoiding the big bang

Avoiding the big bang

The collapsing and then re-expanding quantum universe that loop quantum gravity offers as a replacement of the standard big bang models

Read More…

Taming infinity with loops

Taming infinity with loops

How loop quantum gravity could replace the absurd state of infinite density, the big bang with which, according to Einstein's relativity, the universe began

Read More…

Searching for the quantum beginning of the universe

Searching for the quantum beginning of the universe

About attempts to understand the beginning of our universe using different approaches to quantum gravity

Read More…

Der Ursprung der Elemente

Zur Entstehung leichter Atomkerne im frühen Universum.

Heat that meets the eye

Heat that meets the eye

The connection between temperature and the emission of electromagnetic radiation, as well as the consequences for stars, matter disks around black holes, and cosmology

Read More…

Relativität und Quanten

Zur relativistischen Quantentheorie sowie zu Stringtheorie, Schleifengravitation und anderen Ansätzen, die Einsteinsche Gravitation und Quantentheorie zusammenzubringen

Grundlagen der Quantengravitation

Einige Fragen zur Quantengravitation, die weitgehend unabhängig davon sind, welchen der vorhandenen Zugänge zu diesem Problem man wählt.

Actors on a changing stage: quantum gravity and background independence

Actors on a changing stage: quantum gravity and background independence

The principle of background independence - space and time are no fixed structure, but take part in the dynamical evolution of the world - and its consequences for the problem of quantum gravity

Read More…

Stringtheorie

Mehr zur Stringtheorie, momentan vor allem zur Frage der Extradimensionen, die in dieser Theorie eine wichtige Rolle spielen.

Extra dimensions - and how to hide them

Extra dimensions - and how to hide them

Why our universe could possess dimensions beyond length, width and depth - and why those dimensions need not be noticeable in everyday life

Read More…

The embedded universe

The embedded universe

Is our three-dimensional world embedded in a higher-dimensional space?

Read More…

Particle accelerators as black hole factories?

Particle accelerators as black hole factories?

The intriguing possibility that the next generation of particle accelerators might produce - and allow the detection of - miniature black holes

Read More…

Hunting for extra dimensions

Hunting for extra dimensions

Ways of detecting extra dimensions - and why the fact that our earth orbits the sun is a relevant data point

Read More…

Simplicity in higher dimensions

Simplicity in higher dimensions

Why matters that seem rather complicated might be much more simple in higher dimensions

Read More…

Schleifen-Quantengravitation

Mehr zum Ansatz der Schleifen-Quantengravitation (Loop-Quantengravitation), momentan insbesondere zu ihren kosmologischen Anwendungen.

The fabric of space: spin networks

The fabric of space: spin networks

The quantum structure of space according to loop quantum gravity

Read More…

Avoiding the big bang

Avoiding the big bang

The collapsing and then re-expanding quantum universe that loop quantum gravity offers as a replacement of the standard big bang models

Read More…

Taming infinity with loops

Taming infinity with loops

How loop quantum gravity could replace the absurd state of infinite density, the big bang with which, according to Einstein's relativity, the universe began

Read More…

Weitere Ansätze zur Quantengravitation

Auch jenseits von Strings und Loops gibt es Ansätze zur Zähmung des Problems der Quantengravitation. Hier werden zumindest zwei davon vorgestellt.

Geometry from order: causal sets

Geometry from order: causal sets

An overview of the causal set approach to a theory of quantum gravity

Read More…

Searching for the quantum beginning of the universe

Searching for the quantum beginning of the universe

About attempts to understand the beginning of our universe using different approaches to quantum gravity

Read More…

Physikalische Grundlagen

Hintergrundinformationen zur Quantentheorie