90,525,801,730 Cannon Balls - Numberphile
10:47
Apéry's constant (calculated with Twitter) - Numberphile
13:25
Impossible Squares - Numberphile
9:05
Mesolabe Compass and Square Roots - Numberphile
18:27
How to mathematically hang a picture (badly).
11:41
Treasures from The Cave (with Adam Savage) - Objectivity 251
8:19
The Square-Sum Problem (extra footage) - Numberphile
12:26
Can you solve the banana puzzle?
12:04