Category:Leibnitz calculator

The Leibniz Stepped Drum (or Step(ped) Reckoner, a translation of its German name Staffelwalze) was a digital mechanical calculator invented by German mathematician and philosopher Gottfried Wilhelm Leibniz around 1672 and completed 1694.

Media in category "Leibnitz calculator"

Last modified on 9 May 2012, at 06:50