Twin paradox: the real explanation (no math)
21:15
Special Relativity: This Is Why You Misunderstand It
13:21
Twin paradox: the real explanation
31:22
A Equação de Um Trilhão de Dólares
13:36
Why does light bend when it enters glass?
14:35
What happened before the Big Bang?
16:46
What Time Dilation ACTUALLY Is In Relativity (Hint: It has nothing to do with time)
16:20
Einstein, Gravity, and the Twin Paradox (Einstein's 1918 Solution)
10:44