pi_circle.png

Hello there.

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

Measuring Coastline

Measuring Coastline

Why is it problematic to measure the length of coastline?

Featuring Steve Mould: https://twitter.com/MouldS

With thanks to the Ordnance Survey: http://www.ordnancesurvey.co.uk

The Greatest Ever Infographic

The Greatest Ever Infographic

63 and -7/4 are special

63 and -7/4 are special