Here's the explanation of why Tau is used: http://www.theoremoftheday.org/Annex/taumanifesto.html http://www.theoremoftheday.org/Annex/taumanifesto.html Backgr

Here's the explanation of why Tau is used: http://www.theoremoftheday.org/Annex/taumanifesto.html http://www.theoremoftheday.org/Annex/taumanifesto.html Background of Tau: https://en.m.wikipedia.org/wiki/Turn_(geometry)#Tau_proposal https://en.m.wikipedia.org/wiki/Turn_(geometry)#Tau_proposal And a nice animation of Tau: https://commons.m.wikimedia.org/wiki/File:Circle_radians_tau.gif#mw-jump-to-license https://commons.m.wikimedia.org/wiki/File:Circle_radians_tau...