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Hello there.

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

400 and Gamebooks

400 and Gamebooks

James Clewett graphs one of his favourite books and explains the significance of 400.

The extra video about the weird bit of graph is at http://youtu.be/wYo0SOMlxuc

The book is The Warlock of Firetop Mountain, the first in the Fighting Fantasy series. The same principle applies to the likes of "Choose Your Own Adventure" books.

James Clewett tweets (occasionally) at https://twitter.com/_Itch_

More videos featuring James: http://www.youtube.com/playlist?list=PLeaKaAcimVK3tyCR6ugbA4Yx7eaP0MIoX

Tau of Phi

Tau of Phi

Keith Numbers

Keith Numbers