Welcome to Einstein-Online,
a website about Einstein's theories of relativity!

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Elementary Einstein

Confused by curved spaces? Baffled by black holes? Then it's time to read our online introduction to relativity, Elementary Einstein!

Schwarzschild, LISA & Co.

Ready for more Einstein? Our Spotlights on relativity deal with selected topics in relativity - from modern research to age-old questions. Our latest additions:

• Find out about simulations of neutron stars, jets, supernovae and, more generally, relativistic fluids in The realm of relativistic hydrodynamics
• Explore a simple model for inhomogeneous universes in Of gravitational waves and spherical chickens

Einstein - Original version  

Read about Einstein's theories in his mother tongue! Try the German version of Einstein Online!

Links & Books

If you want to know even more than what's on einstein-online, here are our recommendations: Einstein on the WWW and Suggestions for further reading.

About Einstein Online

More information about this website can be found in the section About EO, notably What's new, a list of our authors and editorial team, a list of EO partner institutions and contact information.

Dictionary

More than 350 entries from "absolute zero" to "X-rays" - whenever you see this type of link on an Einstein Online page, it'll take you to an entry in our relativistic dictionary.