Una breve historia de números prohibidos - Alessandra King
4:55
The mathematics of sidewalk illusions - Fumiko Futamura
4:30
Where do math symbols come from? - John David Walters
9:17
How This Pen Changed The World
5:47
Who decides how long a second is? - John Kitching
23:51
Why is this number everywhere?
4:47
History's "worst" nun - Theresa A. Yugar
33:37
Something Strange Happens When You Trust Quantum Mechanics
9:27