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A 19-minute video by Veritasium, on the Mathematics shelf. It came up in r/math, in a thread called “Absolute gorgeous mathematics channel like 3blue1brown”.
Veritasium, Video, 19 min, 2021, on the Mathematics shelf
For thousands of years, mathematicians were calculating Pi the obvious but numerically inefficient way. Then Newton came along and changed the game.
20 min
But what is the Fourier Transform? A visual introduction.3Blue1BrownMentioned in r/ElectricalEngineering
13 min
Why slicing a cone gives an ellipse (beautiful proof)3Blue1BrownMentioned in r/3Blue1Brown
22 min
Group theory, abstraction, and the 196,883-dimensional monster3Blue1BrownMentioned in r/compsci
18 min
The intuition behind Fourier and Laplace transforms I was never taught in schoolZach StarMentioned in r/ElectricalEngineering: Difficulty understanding Fourier Transform
44 min
A Swift Introduction to Geometric AlgebrasudgylacmoeMentioned in r/3Blue1Brown
45 min
Why There's 'No' Quintic Formula (proof without Galois theory)not all wrongMentioned in r/math
33 min
How people came up with the natural logarithm and the exponential function #SoME1Daniel RubinMentioned in r/math
32 min
Visualizing the 4d numbers Quaternions3Blue1BrownMentioned in r/3Blue1Brown