Edmund Gunter

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Edmund Gunter

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 .

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Gunter

The Oxford Dictionary of Phrase and Fable | 2006 | | Â© The Oxford Dictionary of Phrase and Fable 2006, originally published by Oxford University Press 2006. (Hide copyright information) Copyright

Gunter personal surname. Gunter's was the name of a famous London confectioner's and caterer's, established in the reign of George III 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 measuring instrument 66 ft (20.1 m) long, subdivided into 100 links, each of which is a short section of wire connected to the next link by a loop. It has now been superseded by the steel tape and electronic equipment.

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ELIZABETH KNOWLES. "Gunter." The Oxford Dictionary of Phrase and Fable. Oxford University Press. 2006. Encyclopedia.com. 4 Dec. 2009 <http://www.encyclopedia.com>.

ELIZABETH KNOWLES. "Gunter." The Oxford Dictionary of Phrase and Fable. Oxford University Press. 2006. Encyclopedia.com. (December 4, 2009). http://www.encyclopedia.com/doc/1O214-Gunter.html

ELIZABETH KNOWLES. "Gunter." The Oxford Dictionary of Phrase and Fable. Oxford University Press. 2006. Retrieved December 04, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O214-Gunter.html

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	TAKING THE FULL MEASURE OF THE FORMATIVE YEARS.(DAILY BREAK)(Review) Newspaper article from: The Virginian Pilot; 3/2/2003; 700+ words ; ...and bounds would not suffice. That's where Edmund Gunter, a 17th century English mathematician, entered...measuring 4,840 square yards or 10 square Gunter chains. Introduced in 1607, Gunter's chain crossed the Atlantic and eventually...
	The slide rule today: respect for the past. (history of the slide rule) (Input-Output) (Column) Magazine article from: Mechanical Engineering-CIME; 7/1/1993; ; 700+ words ; ...foundation for the slide rule. In 1620, Edmund Gunter marked a 24-inch-long straight scale with logarithms. Gunter's rules were used to perform multiplication...minister and mathematician, placed two Gunter rules side by side to avoid the use...
	Astronauts, Purdue Alumni Add Their Contributions to New Slide-Rule Exhibit. News Wire article from: AScribe Science News Service; 8/30/2004; 700+ words ; ...subtraction. Six years later, English mathematician Edmund Gunter created a number line in which the positions of numbers...and in 1632 fellow countryman William Oughtred used Gunter's approach to invent the first slide rule. The display...
	SLIDES RULE Magazine article from: Mechanical Engineering; 12/1/2005; ; 700+ words ; ...subtraction. Six years later, English mathematician Edmund Gunter devised a logarithmic ruler with a set of dividers for...subtracting. In 1632, countryman William Oughtred used Gunter's approach to invent the first slide rule. The oldest...
	Slides rule: before the calculator, before the computer, a simple tool that worked remains far from forgotten.(Purdue University) Magazine article from: Mechanical Engineering-CIME; 12/1/2005; ; 700+ words ; ...subtraction. Six years later, English mathematician Edmund Gunter devised a logarithmic ruler with a set of dividers for...subtracting. In 1632, countryman William Oughtred used Gunter's approach to invent the first slide rule. The oldest...
	Measuring America: How an Untamed Wilderness Shaped the United States and Fulfilled the Promise of Democracy. (Science & Technology).(Book Review)(Brief Article) Magazine article from: The Wilson Quarterly; 9/22/2002; ; 700+ words ; ...1607 by a little-known English mathematician named Edmund Gunter. This seemingly arbitrary length is four times a rod...Linklater somewhat overpraises the sophistication of Gunter's chain--it is, in the end, a pretty odd standard...
	Slide rules rule!(Stress Relief) Magazine article from: Advanced Materials & Processes; 10/1/2004; 612 words ; ...subtraction. Six years later, English mathematician Edmund Gunter created a number line in which the positions of numbers...and in 1632 fellow countryman William Oughtred used Gunter's approach to invent the first slide rule. The display...
	Location, Location Newspaper article from: The Washington Post; 2/2/2003; ; 700+ words ; ...greed and missed opportunities. The surveyor's chain devised by Edmund Gunter around 1620 left a lasting imprint on roads and boundaries. With...decimal and "four-based" measurements such as inches and feet, Gunter's chain perme
	The trends that failed the grade Newspaper article from: The Northern Echo; 5/22/2002; ; 700+ words ; ...bag. So he stuck with the slide rule - a mini computer based on Napier's logs invented in 1650 by two Englishmen, Edmund Gunter and the Reverend William Oughtred, but refined in 1850 by French army officer Amedee Mannheim. It wasn't until...
	Why the laws of Cosines on the sphere and in the plane are equivalent Magazine article from: Mathematics and Computer Education; 4/1/2003; ; 700+ words ; ...the orthogonal projection of the side BC on the side AC (Figure 1a and Figure 1b). It was not until 1620, when Edmund Gunter [14] suggested the use of "cosine of an angle" for the sine of the complementary angle. This meant that cos C...