The Amazing Heptadecagon (17-gon)

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...

More on the math behind this: http://youtu.be/oYlB5lUGlbw
Catch David on the Numberphile podcast: https://youtu.be/9y1BGvnTyQA

Professor David Eisenbud - director of MSRI - on the amazing 17-gon and its link to Gauss.
See end of this video for a bit MSRI's address at 17 Gauss Way!