| 单词 | variation of the compass, or needle |
| 释义 | > as lemmasvariation of the compass, (†lodestone,) or needle a. variation of the compass, (†lodestone,) or needle, the deviation or divergence of the magnetic needle from the true north and south line; the amount or angular measure of this; = declination n. 8(b). ΘΚΠ society > travel > travel by water > vessel, ship, or boat > equipment of vessel > navigational aids > [noun] > compass > variation north-easting1555 variation of the compass, (lodestone,) or needle?a1560 norwesting1561 north-westing1571 variation1595 declination1625 magnetic variation1696 variation of the variation1706 magnetic declination1787 ?a1560 L. Digges Geom. Pract.: Pantometria (1571) i. xxix. sig. I ij v Drawing a right line making an angle..equall to the variation of the compasse in your region. a1584 S. Borough in R. Hakluyt Princ. Navigations (1589) ii. 312 The variation of the compasse, from North to East [was] almost 13. degrees. 1613 S. Purchas Pilgrimage 49 Cabot first found out the variation of the Compasse. 1679 J. Moxon Math. made Easie 160 Variation of the Needle, the Turning or Deviation of the Needle in the Mariners Compass [etc.]. 1687 A. Lovell tr. J. de Thévenot Trav. into Levant ii. 156 The variation of the Loadstone. 1774 M. Mackenzie Treat. Maritim Surv. 62 How to find the Sun's Azimuth, and from thence to find the Variation of the Needle. 1834 M. Somerville On Connexion Physical Sci. (1849) xxix. 338 The variation of the compass. 1849 G. C. Greenwell Gloss. Terms Coal Trade Northumberland & Durham 16 The diurnal variation of the needle being far from inconsiderable. < as lemmas |
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