NumberphileSeason 112021 · 5 episodesEpisodes1The Drag Equation (Empire State Building v Eiffel Tower)Tom Crawford discusses drag - then we drop the Empire State Building and Eiffel Tower into the ocean...2Quasiperfect Numbers with Eric LanderEric Lander discusses how quasiperfect numbers gave him a start...3A proof that e is irrationalProfessor Ed Copeland shows a proof by Joseph "Voldemort" Fourier that e is irrational.4Annoying Puzzles (and Cognitive Reflection Problems)This video features Tim Harford.5Gabriel's Horn ParadoxFeaturing Tom Crawford.Season 1