Albert Einstein’s special and general theories of relativity influenced the course of human destiny in ways that simply could not be predicted.    Relativity changed how the world thought about space, time, mass, energy, and gravity.  Today, cosmology has the benefit of modern technology and instrumentation which allows astronomers to perform tests that – over a century – continue to ‘prove’ Einstein’s work.

He didn’t even have a calculator.

Here are 12 things to know about relativity presented as an infographic, via Space.com.

How the Theory of Relativity Works
Source: http://www.space.com/28738-einstein-theory-of-relativity-explained-infgraphic.html