Weber's Law

Additional information

Check out Brilliant (and get 20% off) by clicking https://brilliant.org/numberphile (sponsor)

Hannah Fry has a new book coming: https://amzn.to/2J6oCph (US) or https://amzn.to/2KVfXDD (UK)

A little extra bit from this interview: https://youtu.be/R1YWefm-o6c

Hannamation in this video by Pete McPartlan.

More Hannah on Numberphile: http://bit.ly/hannah_vids

Some extra out-take video from Hannah's stint behind the camera is available to Patrons!!!
https://www.patreon.com/posts/19022716