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Marble adding machine
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Flaw in the Enigma Code - Numberphile
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Number 1 and Benford's Law - Numberphile
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How Math is Visual - by Scientific American
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What Causes Traffic Jams? - Instant Egghead #29
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How big is infinity? - Dennis Wildfogel
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Powers of Ten™ (1977)
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How does math guide our ships at sea? - George Christoph
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NOVA scienceNOW | Twin Prime Conjecture
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Why the other line is likely to move faster
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Why do competitors open their stores next to one another? - Jac de Haan
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Hilbert's Infinite Hotel - 60-Second Adventures in Thought (4/6)
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Pi 3.14159265358979323846
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Moebius Transformations Revealed
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Infinity is bigger than you think - Numberphile
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Math Prodigy Terence Tao, UCLA
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Public Key Cryptography: Diffie-Hellman Key Exchange (short version)
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New plane boarding method could save time
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"Pi In The Sky" Kickstarter