Guided tours through the Arithmeum

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Napier's Rods and Slide Rules

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Reckoning with machines

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Reckoning with a master of calculation

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Reckoning with the Abacus

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Reckoning with machines

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Professor Dr. Bernhard Korte

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Museums and their young Visitors

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How does a computer work?

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Cryptography and Art

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Napier's Rods and Slide Rules

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Adding with the Help of Machines

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Hollerith - Saving Data by means of Holes

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Art Squared

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Numbers, Knots and Stones

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From Caesar to the Enigma machine

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What's in a Computer?

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A fascinating discovery –
the mechanical calculating machine of Johann Sauter in Göteborg

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