A mobile tool for carrying out simple mathematical equations, the Curta was the best pocket calculator until the advent of the electric calculator. Now, thanks to the 3D-printing prowess of Charlotte, ...
The Curta calculator, a small cylindrical math machine with a hand-crank on the top, was first dreamt up by Curt Herzstark in the 1930s who finished its design while imprisoned in the Buchenwald ...
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