LondonCityGirl explains Einstein's famous theory of relativity!
TIME STAMPS:
00:00 - Introduction
00:11 - Classical relativity
01:26 - Special theory of relativity - time dilation
03:37 - Special theory of relativity - length contraction
04:50 - Time travel
05:33 - General theory of relativity
06:18 - How do we know it's true?