Inca Knot Numbers - Numberphile

Inca Knot Numbers - NumberphileInca Knot Numbers - Numberphile External link

Alex Bellos discusses how the Incans used knots in string (Quipu) to record numbers. Check out Brilliant (get 20% off their premium service): (sponsor) More links & stuff in full description below ↓↓↓ Check out the Language Lover's Puzzle Book) on Amazon: htt

Content typelink