John Hadley


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Hadley, John

 

Born Apr. 16, 1682, in Hartford, England; died Feb. 14, 1744, in East Barnet. English inventor and astronomer. Fellow (1717) and vice-president (1728) of the Royal Society of London.

Hadley is credited with the invention of the sextant (1730–31), which is widely used in navigation.

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Something Selectman John Hadley said after Bruce's passing rings true: Most of the time, Bruce was the smartest guy in the room.
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John Hadley, another firefighter-paramedic, said this tightly-knit circle of friends is grieving with the Maihoris and wanted to help.
His technique of using the angle of a celestial object from the horizon and the time the measurement was taken to calculate a position line on a nautical chart was the independently rediscovered in around 1730 by an English mathematician called John Hadley and US inventor Thomas Godfrey.
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Together with five of their colleagues, officers Robert Hall, 37, John Hadley, 40, Richard Seve, 52, James Long, 37, and Alan Calvin, 58, all of Grosvenor Road station, they were also acquitted of doing acts intending to pervert the course of justice.
John Hadley, joint managing director along with his brother Stephen, said: "For the last five years, and probably two years longer than we should have done, we have struggled against cheap imports from China.
Al verle en aquellas fotografias me acorde de que su verdadero nombre era John Hadley Nicanor Hemingway.
UNLIKE HIS FATHER, John Hadley Nicanor Hemingway--affectionately known as Jack--never had the opportunity to read the news of his own death.