Tau of Phi

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...

Professor Phil Moriarty is at it again - the music is explained in great detail (and can be downloaded) by visiting: http://bit.ly/T6hipK

Phil's main Tau video is at: http://www.youtube.com/watch?v=83ofi_L6eAo

See our collection of Pi videos at: http://www.youtube.com/playlist?list=PL4870492ACBDC2E7C

ViHart: http://www.youtube.com/user/Vihart
Golden Ratio song at: http://www.youtube.com/watch?v=nBgQPSUTWVM