Gunter's quadrant — Quadrant Quad rant, n. [L. quadrans, antis, a fourth part, a fourth of a whole, fr. quattuor four: cf. F. quadrant, cadran. See {Four}, and cf. {Cadrans}.] 1. The fourth part; the quarter. [Obs.] Sir T. Browne. [1913 Webster] 2. (Geom.) The… … The Collaborative International Dictionary of English
Quadrant — Quad rant, n. [L. quadrans, antis, a fourth part, a fourth of a whole, fr. quattuor four: cf. F. quadrant, cadran. See {Four}, and cf. {Cadrans}.] 1. The fourth part; the quarter. [Obs.] Sir T. Browne. [1913 Webster] 2. (Geom.) The quarter of a… … The Collaborative International Dictionary of English
Quadrant of altitude — Quadrant Quad rant, n. [L. quadrans, antis, a fourth part, a fourth of a whole, fr. quattuor four: cf. F. quadrant, cadran. See {Four}, and cf. {Cadrans}.] 1. The fourth part; the quarter. [Obs.] Sir T. Browne. [1913 Webster] 2. (Geom.) The… … The Collaborative International Dictionary of English
Gunter's scale — Gun ter s scale A scale invented by the Rev. Edmund Gunter (1581 1626), a professor of astronomy at Gresham College, London, who invented also {Gunter s chain}, and {Gunter s quadrant}. [1913 Webster] Note: Gunter s scale is a wooden rule, two… … The Collaborative International Dictionary of English
Gunter, Edmund — ▪ English mathematician born 1581, Hertfordshire, Eng. died Dec. 10, 1626, London English mathematician who invented many useful measuring devices, including a forerunner of the slide rule. Gunter was professor of astronomy at Gresham … Universalium
Quadrant (instrument) — Ptolemy using a quadrant A quadrant is an instrument that is used to measure angles up to 90°. It was originally proposed by Ptolemy as a better kind of astrolabe.[1] Several different variations of the instrument were later produced by medieval… … Wikipedia
Quadrant (instrument) — Pour les articles homonymes, voir Quadrant. Le quadrant mobile d Augustin Stark (1815). Le quadrant est un ancien instrument de navigation qui servait à faire le point sur sa position en … Wikipédia en Français
Gunner's quadrant — Quadrant Quad rant, n. [L. quadrans, antis, a fourth part, a fourth of a whole, fr. quattuor four: cf. F. quadrant, cadran. See {Four}, and cf. {Cadrans}.] 1. The fourth part; the quarter. [Obs.] Sir T. Browne. [1913 Webster] 2. (Geom.) The… … The Collaborative International Dictionary of English
Hadley's quadrant — Quadrant Quad rant, n. [L. quadrans, antis, a fourth part, a fourth of a whole, fr. quattuor four: cf. F. quadrant, cadran. See {Four}, and cf. {Cadrans}.] 1. The fourth part; the quarter. [Obs.] Sir T. Browne. [1913 Webster] 2. (Geom.) The… … The Collaborative International Dictionary of English
GUNTER, EDMUND — mathematician, born in Hertfordshire; was educated at Oxford for the Church, but his natural bent was towards mathematical science, and in 1619 he became professor of Astronomy in Gresham College, London, a position he held till his death; his … The Nuttall Encyclopaedia