Integrating the impossible
23:37
We calculated pi with colliding blocks
31:37
Mathematicians finally find the infinite card game.
19:32
Some geometry behind the Basel problem
15:57
when Feynman's trick doesn't work..
26:51
Feynman's (almost) impossible integral
17:13
Finding the closed form for a double factorial sum
17:26
Researchers thought this was a bug (Borwein integrals)
28:55