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This is Numberphile. We mainly post videos about mathematics and just numbers in general.

How to Trisect an Angle with Origami

How to Trisect an Angle with Origami

Zsuzsanna Dancso trisects an angle using origami - follows on from this video about Euclidean geometry: http://youtu.be/6Lm9EHhbJAY

Reddit discussion on this video: http://redd.it/2p3omd

Wrong Turn on the Dragon

Wrong Turn on the Dragon

Euclid's Big Problem

Euclid's Big Problem