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120 Years Old Mechanical Portable Calculator - Video

Bumiku

2 Apr, 2016

The math nerds at Numberphile have found one of the first calculators ever built. Back in 1895, Hans W. Egli built what he dubbed The Millionaire, explains a very excited Cliff. The mechanical device can still calculate addition, subtraction, multiplication, and division, and was even portable! A truly impressive device for back in the day.

Nerd Numberphile Serious Technology Video

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