单词 | magnetic inclination |
释义 | > as lemmasmagnetic inclination b. The downward tilt of a magnetic needle that is supported vertically at its centre, as caused by the earth's magnetic field; the angle formed between such a needle and the horizontal at a given location. In later use also: the angle existing between the Earth's magnetic field lines and the horizontal at a given location. More fully magnetic inclination. ΘΚΠ society > travel > travel by water > vessel, ship, or boat > equipment of vessel > navigational aids > [noun] > bit of magnetized steel as direction indicator > dip of needle inclination1613 dip1728 1613 M. Ridley Short Treat. Magneticall Bodies xi. 35 Aboue the Horizon the inclination and conformation of the Inclinatory-needle is obserued. 1678 T. Hobbes Decameron Physiologicum viii. 101 The same Needle placed in a Plain perpendicular to the Horizon, hath another Motion called the Inclination. 1785 W. Enfield Inst. Nat. Philos. (new ed.) vi. 339 A needle which..rests on its center parallel to the horizon, on becoming magnetical will incline towards the earth: this is called its inclination, or dipping. 1839 G. Bird Elements Nat. Philos. 151 The dip or inclination of the needle. 1873 G. F. Rodwell Dict. Sci. (new ed.) 171 This angle is read off on the graduated circle, and is the magnetic dip or inclination at the place of observation. 1936 Times 6 June 7/3 This [instrument] is used to measure the magnetic inclination or dip. 1981 New Scientist 4 June 616/2 The first measurement of magnetic dip, or inclination, was made by Robert Norman in 1576. 2009 P. Hawkins Map & Compass vii. 91 The angle it [sc. a bar magnet] lies at is called the magnetic inclination. < as lemmas |
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