"Magnetic variation" Quotes from Famous Books
 ... the surveyor's convenience. It is always well to check the accuracy of the work by an observation upon the other elongation before putting in permanent meridian marks, and care should be taken that they are not placed near any local attractions. The meridian having been established, the magnetic variation or declination may readily be found by setting an instrument on the meridian and noting its bearing as given by the needle. If, for example, it should be north 5 east, the variation is west, because the north end of the needle is west of ...
— Scientific American Supplement No. 360, November 25, 1882 • Various
... sooner does the eccentricity, or individuality, become so great as to suggest disloyalty to the idea of the whole, than ugliness ensues. Thus, comets are portents, shaking the faith of nations, not supporting it, like the stars. So among men. Nature is at pains to secure divergence, magnetic variation, putting into every personality and every powerful action some element of irregularity and imperfection; and her reason for doing so is, that irregularity appertains to the state of growth, and is the avenue of access to higher planes and ...
— Atlantic Monthly, Vol. 7, No. 43, May, 1861 • Various
... compass, and the observations on the variations of the needle made by Winthrop and Dewitt, deserve notice and commendation. Not long since, Gauss, of Germany, invented instruments by which the changes of magnetic variation and force could be accurately determined. Magnetic action is ever varying. The needle does not point in the same direction for even a few minutes together. The force of magnetism, also, perpetually varies. 'True as the needle to the ...
— Continental Monthly , Vol. 6, No. 1, July, 1864 - Devoted to Literature and National Policy. • Various
... to the road; of the height of the chaparral bushes; also various other measurements. He gathered a rag here, a splinter there, and a pinch of earth yonder, inspected them profoundly, and preserved them. He took the "lay" of the place with a pocket-compass, allowing two seconds for magnetic variation. He took the time (Pacific) by his watch, correcting it for local time. He paced off the distance from the cabin site to the corpse, and corrected that for tidal differentiation. He took the altitude with a pocket-aneroid, and the temperature ...
— Innocents abroad • Mark Twain
... changes going on over the earth's surface conform to physical laws; but then no one pretends that there is any single proximate principle which governs all the phenomena of rain-fall, of soil-crumbling, of magnetic variation, and of the distribution of plants and animals. All these things are explained by principles obtained from the various sciences of physics, chemistry, geology, and physiology. And in just the same way the development and distribution of stories is explained by the help ...
— Myths and Myth-Makers - Old Tales and Superstitions Interpreted by Comparative Mythology • John Fiske |
