Apply for Jane Street's Academy of Math and Programming here: https://bit.ly/stevemould-amp Brownian motion was the first visual evidence of Atoms and Molecules. Einstein was able to show that the mass of atoms could be calculated by watching the particles jiggle You can buy my books here: https://stevemould.com/books You can support me on Patreon and get access to the exclusive Discord: https://www.patreon.com/stevemould just like these amazing people: Alex Hackman Glenn Sugden Tj Steyn Pavel Dubov Lizzy and Jack Jeremy Cole Brendan Williams Frank Hereford Lukas Biewald Damien Szerszinski Marshall Fitzpatrick Heather Liu Grant Hay John Zelinka Paul Warelis Nathan Blubaugh Twitter: http://twitter.com/moulds Instagram: https://www.instagram.com/stevemouldscience/ Facebook: https://www.facebook.com/stevemouldscience/ Buy nerdy maths things: http://mathsgear.co.uk/