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July 13, 2012Art Benjamin is a "Mathemagician"3 minutesPlayArt Benjamin demonstrates how he calculates huge sums faster than a calculator....moreShareView all episodesBy ENGINEERING.comJuly 13, 2012Art Benjamin is a "Mathemagician"3 minutesPlayArt Benjamin demonstrates how he calculates huge sums faster than a calculator....more
July 13, 2012Art Benjamin is a "Mathemagician"3 minutesPlayArt Benjamin demonstrates how he calculates huge sums faster than a calculator....more