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Russian Multiplication
Numberphile
Posted 4 years ago by boyt in category: interesting   Comments (0)

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A Short History of the Modern Calendar
Posted 12 years ago by boyt in category: interesting   Comments (0)

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How Bowling Balls Are Made
Posted 11 years ago by boyt in category: interesting   Comments (0)

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How Many Photos Have Been Taken?
Posted 11 years ago by boyt in category: interesting   Comments (0)

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Encryption and HUGE numbers
Banks, Facebook, Twitter and Google use huge numbers, based on prime factors, to keep our Internet secrets. This is RSA public-key encryption.
Posted 11 years ago by boyt in category: interesting   Comments (0)