Uploaded January 2025 | Updated September 2026, 3 weeks ago
Video demonstration using computer animation to show the internal components as well as the functionality of the Johann Christoff Schuster calculator made in 1820. The first four species calculator capable of addition, subtraction, multiplication and division was invented by Gottfried Leibniz in 1672. From that time through the time this artifact was produced, about a dozen hand-built calculating machines were produced. Video courtesy of the Arithmeum, Bonn, Germany. For more information of this calculator go to my-time-machines.net/schuster.htm.
Video demonstration using computer animation to show the internal components as well as the functionality of the Johann Christoff Schuster calculator made in 1820. The first four species calculator capable of addition, subtraction, multiplication and division was invented by Gottfried Leibniz in 1672. From that time through the time this artifact was produced, about a dozen hand-built calculating machines were produced. Video courtesy of the Arithmeum, Bonn, Germany. For more information of this calculator go to my-time-machines.net/schuster.htm.
