Category:Leibnitz calculator

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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"

The following 8 files are in this category, out of 8 total.