Lightning calculation and other "mathemagic" | Arthur Benjamin Lightning calculation and other "mathemagic" | Arthur Benjamin begin-post-stats TED • 1M views end-post-stats begin-duration 15:15 end-duration Math topics: _Elementary_arithmetic_##Elementary arithmetic##_0_(number)_##0 (number)##_Square_(algebra)_##Square (algebra)##_Multiplication_##Multiplication##_Plus_and_minus_signs_##Plus and minus signs Other topics: _American_inventions_##American inventions##_Calculator_(Windows)_##Calculator (Windows)##_Nuclear_weapon_##Nuclear weapon##_Calculator_##Calculator video-id: M4vqr3_ROIk channel_TED_ So What Learning American inventions , Elementary arithmetic Sunday, January 21, 2018 Share Share
