← Numberphile

Season 11

5 episodes · 2021

  1. 1The Drag Equation (Empire State Building v Eiffel Tower)

    06 Jan 2021

    Tom Crawford discusses drag - then we drop the Empire State Building and Eiffel Tower into the ocean...

  2. 2Quasiperfect Numbers with Eric Lander

    18 Jan 2021

    Eric Lander discusses how quasiperfect numbers gave him a start...

  3. 3A proof that e is irrational

    24 Jan 2021

    Professor Ed Copeland shows a proof by Joseph "Voldemort" Fourier that e is irrational.

  4. 4Annoying Puzzles (and Cognitive Reflection Problems)

    31 Jan 2021

    This video features Tim Harford.

  5. 5Gabriel's Horn Paradoxfinale

    18 Feb 2021

    Featuring Tom Crawford.