Grace's Guide To British Industrial History

Registered UK Charity (No. 1154342)

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 167,694 pages of information and 247,077 images on early companies, their products and the people who designed and built them.

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.

John Marke

From Graces Guide

Maker of mathematical and astronomical instruments active in London between 1665 and 1679. Worked with Henry Sutton (c. 1637-1665), and succeeded him in 1665.[1]

The Museo Galileo (Florence) has on display a 'trigonometric machine' for determining the value of trigonometric functions (sine and cosine) of a known angle and vice versa. See photos. The machine was invented by Sir Samuel Morland in 1663 and built by John Marke in 1670. For more information see Museo Galileo webpage for Marke's Trigonometric Machine.


See Also

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Sources of Information

  1. ↑ [1] Museo Galileo: John Marke webpage
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