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This is Numberphile. We mainly post videos about mathematics and just numbers in general.

Shapes and Hook Numbers

Shapes and Hook Numbers

Brady Haran
Curtis Greene, Combinatorics
Alex Bellos discusses how the Incans used knots in string (Quipu) to record numbers.Check out Brilliant (get 20% off their premium service): https://brillian...

Shapes, Tableaux and Hook Numbers. Featuring Professor Curtis Greene from Haverford College.

Extra footage: https://youtu.be/JiwM5g_RC3c

Fantastic Quaternions

Fantastic Quaternions
The iPhone of Slide Rules

The iPhone of Slide Rules