Mechanical calculators are an engineering marvel unknown to most people. The most advanced mechanical calculator ever built, the Curta calculator, fits into the palm of your hand and uses dozens of ...

Blaise Pascal is known for a number of things, but we remember him best for the Pascaline, an early mechanical calculator. [Chris Staecker] got a chance to take a close look at one, which is quite a ...

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 ...