pi_circle.png

Hello there.

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

Elliptical Pool Table

Elliptical Pool Table

Brady Haran
Alex Bellos, Geometry
Alex Bellos discusses how the Incans used knots in string (Quipu) to record numbers.Check out Brilliant (get 20% off their premium service): https://brillian...

A game to play on the elliptical table: http://youtu.be/3WHBlPvK3Ek

And more extra footage: http://youtu.be/pulp55gTKGE
Alex Bellos' Loop Table website: http://www.loop-the-game.com

Alex discusses the topic in his book Alex Through the Looking-Glass (UK) and The Grapes of Math (US)... http://bit.ly/BellosBooks

How many chess games are possible?

How many chess games are possible?
A Game for the Elliptical Pool Table

A Game for the Elliptical Pool Table