Another Mechanical Calculator

Published by patrick honner on

odhner mechanical calculatorThis video demonstrates the Original Odhner mechanical calculator.

It looks like a miniature typewriter, and it seems to operate in the same manner as the Curta mechanical calculator:  switches allow you to “input” numbers into the machine, and then turning a crank performs addition or subtraction.

The video demonstrates some basic operations of the Odhner, and it includes  a nice (if lengthy) computation of the square root of 2 that involves a few arithmetic tricks.

Categories: Technology

patrick honner

Math teacher in Brooklyn, New York


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