Tau replaces Pi - Numberphile Tau replaces Pi - Numberphile begin-post-stats Numberphile • 869K views end-post-stats begin-duration 9:42 end-duration Math topics: _Mathematical_analysis_##Mathematical analysis##_Circle_##Circle##_Pi_##Pi##_Mathematical_analysis_##Mathematical analysis##_Length_##Length##_Arc_length_##Arc length##_Diameter_##Diameter##_Radius_##Radius##_Equivalence_##Equivalence##_Equals_sign_##Equals sign##_Equality_(mathematics)_##Equality (mathematics)##_Idea_##Idea##_Elementary_mathematics_##Elementary mathematics##_Ratio_##Ratio##_1_(number)_##1 (number)##_Centre_(geometry)_##Centre (geometry)##_Divisor_##Divisor Other topics: _Natural_units_##Natural units##_Planck_constant_##Planck constant##_Radian_##Radian##_Natural_units_##Natural units##_Greek_letters_##Greek letters##_Pi_(letter)_##Pi (letter)##_Theta_##Theta##_Omega_##Omega##_Tau_##Tau##_Physics_##Physics##_Quantum_mechanics_##Quantum mechanics##_Circumference_##Circumference##_Physics_##Physics##_Classical_mechanics_##Classical mechanics##_Angle_##Angle##_Angular_frequency_##Angular frequency##_Simple_harmonic_motion_##Simple harmonic motion video-id: 83ofi_L6eAo channel_Numberphile_ So What Learning Classical mechanics , Elementary mathematics , Equivalence , Greek letters , Length , Mathematical analysis , Natural units , Physics Tuesday, January 9, 2018 Share Share