There's a strange number system, featured in the work of a dozen Fields Medalists, that helps solve problems that are intractable with real numbers. Head to https://brilliant.org/veritasium to start your free 30day trial, and the first 200 people get 20% off an annual premium subscription.

If you're looking for a molecular modeling kit, try Snatoms a kit I invented where the atoms snap together magnetically: https://snatoms.com

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References:

Koblitz, N. (2012). padic Numbers, padic Analysis, and ZetaFunctions (Vol. 58). Springer Science & Business Media.

Amazing intro to padic numbers here:    • 1 Billion is Tiny in an Alternate Uni...  
Excellent series on padic numbers:    • p adic numbers. Part 1 of 3: 10adic ...  
Great videos by James Tanton: ‪@JamesTantonMath‬

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Written by Derek Muller and Alex Kontorovich
Edited by Trenton Oliver
Animated by Mike Radjabov, Ivy Tello, Fabio Albertelli and Jakub Misiek
Filmed by Derek Muller
Additional video/photos supplied by Getty Images & Pond5
Music from Epidemic Sound & Jonny Hyman
Produced by Derek Muller, Petr Lebedev, & Emily Zhang