Measure the Earth’s Radius! (with this one complicated trick)

Hannah’s book is out now!
https://www.waterstones.com/book/rutherford-and-frys-complete-guide-to-absolutely-everything-abridged/adam-rutherford/hannah-fry/2928377065652
https://www.amazon.co.uk/dp/1787632636/

If you have a spare 2⅔ hours you can watch Matt hand craft a protractor. Yes, I know the audio is glitchy. https://youtu.be/rSox1RRbxXA

More about Abu Arrayhan Muhammad ibn Ahmad al-Biruni: https://mathshistory.st-andrews.ac.uk/Biographies/Al-Biruni/

This video was made possible by my Patreon supporters for. Those cocktails were officially on you. https://www.patreon.com/standupmaths

CORRECTIONS
- None yet! Let me know if you spot any mistakes.

Editing and filming by Trunkman Productions https://trunkman.co.uk
Protractors by Matt Parker
Music by Howard Carter
Design by Simon Wright and Adam Robinson

MATT PARKER: Stand-up Mathematician
Website: http://standupmaths.com/
US book: https://www.penguinrandomhouse.com/books/610964/humble-pi-by-matt-parker/
UK book: https://mathsgear.co.uk/collections/books/products/humble-pi-signed-paperback

Видео Measure the Earth’s Radius! (with this one complicated trick) канала Stand-up Maths