"Magnetic needle" Quotes from Famous Books
 ... damage was done, but those having offices in tall buildings had an unpleasant experience which they will not soon forget. A peculiar phenomenon accompanying this seismic disturbance was the variation of the magnetic needle by over eighty degrees from north to east and an extraordinary rise and fall of the barometer. All wireless communication had to be abandoned, owing to the ionizing of the atmosphere, and up to the time this edition went ...
— The Man Who Rocked the Earth • Arthur Train
... show their direction. To finish the definition of the field, it remains to determine the direction of these lines of force. Such direction is, by definition, and conventionally, that in which the north pole of a small magnetic needle, free to move in the field, would travel. It results from this definition that the lines of force issue from the north pole of a magnet and re-enter the south pole, since the north pole of a magnet repels the north pole of a needle, ...
— Scientific American Supplement, Vol. XIX, No. 470, Jan. 3, 1885 • Various
... transmitted by shafting or belting from one part of a factory to another. An electric current meter may be made by giving inclination to the disk, which is for this purpose made exceedingly small and delicate, by means of a heavy magnetic needle deflected by the current. This, like Edison's, is a direction meter; but a meter in which no regard is paid to the direction of the current can be made by help of an iron armature of such a shape that the force with which it is attracted ...
— Scientific American Supplement, No. 315, January 14, 1882 • Various
... profitably interpreted by contraries, a process of which the great Tycho Brahe is said to have availed himself in the case of the little Lackwit, who used to sit and mutter at his feet while he was studying. A mind of this sort we may compare to a magnetic needle, the poles of which have been suddenly reversed by a flash of lightning, or other more obscure accident of nature. It may be safely concluded, that to those whose judgment or information he respected, Sir Alexander Ball did not content himself with giving access and attention. ...
— Confessions of an Inquiring Spirit etc. • by Samuel Taylor Coleridge
... his experiments several days successively until he became familiar with the operation of the machinery, and the movements of the boat. He found that she was as obedient to her helm under water, as any boat could be on the surface, and that the magnetic needle traversed as well in the one as in ...
— Hidden Treasures - Why Some Succeed While Others Fail • Harry A. Lewis
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