http://www.cnn.com/2011/TECH/innovation/03/14/pi.tau.math/index.html
A video explanation of Tau:
Monday, March 14, 2011
Tau or Pi?
Michael Hartl, a physicist thinks pi is not necessary, and that instead of using the diameter and circumference of a circle, that we should be using the radius, and getting the number Tau. The radius of a circle is used more frequently than the diameter. Should we celebrate "Tau day" on June 28?
http://www.cnn.com/2011/TECH/innovation/03/14/pi.tau.math/index.html
http://www.cnn.com/2011/TECH/innovation/03/14/pi.tau.math/index.html
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