Perplexing Paperclips

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...

Featuring Tadashi Tokieda.

Part 2: https://youtu.be/iObpxBfOLv4

More Tadashi videos: http://bit.ly/tadashi_vids

Raw paperclips slow motions: https://youtu.be/zuX5yy_93JA

Video by Brady Haran and Pete McPartlan (animations by Pete)

Spinning Tubes with Tadashi: https://youtu.be/JuuYFt8bahE