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Numberphile Season 11

Returning Series 2011–2021

Season 11 Episodes

5 episodes
1
The Drag Equation (Empire State Building v Eiffel Tower)
Jan 6, 2021
Tom Crawford discusses drag - then we drop the Empire State Building and Eiffel Tower into the ocean...
2
Quasiperfect Numbers with Eric Lander
Jan 18, 2021
Eric Lander discusses how quasiperfect numbers gave him a start...
3
A proof that e is irrational
Jan 24, 2021
Professor Ed Copeland shows a proof by Joseph "Voldemort" Fourier that e is irrational.
4
Annoying Puzzles (and Cognitive Reflection Problems)
Jan 31, 2021
This video features Tim Harford.
5
Gabriel's Horn Paradox
Feb 18, 2021
Featuring Tom Crawford.