Euclid's Big Problem - Numberphile
26:36
Epic Circles - Numberphile
10:54
Non-Euclidean Geometry Explained - Hyperbolica Devlog #1
38:28
A Miraculous Proof (Ptolemy's Theorem) - Numberphile
16:39
Way Bigger Than Graham's Number (Goodstein Sequence) - Numberphile
7:42
How to Trisect an Angle with Origami - Numberphile
16:53
The problem Euclid couldn't solve
14:27
Braids in Higher Dimensions - Numberphile
8:32