Research topic: Edmund Gunter

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Edmund Gunter

The Columbia Encyclopedia, Sixth Edition
Edmund Gunter 1581-1626, English mathematician and astronomer, educated at Westminster School, London, and Christ Church, Oxford. He invented (1618) a small portable quadrant and discovered (1622) the variation of the magnetic compass. His Gunter's chain is a surveyor's chain graduated on the decimal scale. He devised Gunter's scale, a logarithmic scale of equal parts as well as trigonometric functions, which with the aid of compasses served as a slide rule . Author not available, GUNTER, EDMUND. , The Columbia Encyclopedia, Sixth Edition 2007 ... Read more
Gunter
Gunter personal surname. Gunter's was the name of a famous London confectioner's and caterer...and noted particularly for their ice-creams. according to Gunter in the US, reliably, correctly; the allusion is to the English mathematician Edmund Gunter who devised Gunter's chain, a former ... Read more
Slide Rule
...the logarithmic scale created by British astronomer Edmund Gunter (1581 – 1626) in 1620. Gunter's work, in turn...is 0.3. Also 2 2 2 8. 0.3 0.3 0.3 0.9, the log of 8. Edmund Gunter's logarithm scale arranged numbers from 1 to 10, spacing... Read more

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