"Magnetic needle" Quotes from Famous Books
 ... box with its moving needle was first used, it is now admitted, by the cunning merchants of Cathay during their trading expeditions across the stony monotonous plains of Central Asia that lay between the Flowery Land and the civilization of Persia. From Cathay the use of the magnetic needle was introduced to the Arab mathematicians of Baghdad and Cairo, and through them the secret of the lodestone of China was conveyed to the coast towns of the Levant. At Aleppo or Alexandria some astute trader of Amalfi—perhaps his name really ...
— The Naples Riviera • Herbert M. Vaughan
... the doctor admired all these cosmic phenomena, to which his companions paid but little attention; he had noticed, besides, that their appearance always preceded disturbances of the magnetic needle, and he was preparing some observations on the subject which he intended for Admiral ...
— The Voyages and Adventures of Captain Hatteras • Jules Verne
... which provide disaffection with its opportunity; and in the natural confusion which attended the revolt from the papacy, the obligations of duty, both political and religious, had become indefinite and contradictory, pointing in all directions, like the magnetic needle ...
— History of England from the Fall of Wolsey to the Death of Elizabeth. Vol. II. • James Anthony Froude
... Power of a Magnet. The magnet best known to us all is the compass needle, but for convenience we will use a magnetic needle in the shape of a bar larger and stronger than that employed in the compass. If we lay such a magnet on a pile of iron filings, it will be found on lifting the magnet that the filings cling to the ends in tufts, but leave it almost bare in the center (Fig. 222). The points ...
— General Science • Bertha M. Clark
... action of a voltaic current on a magnetic needle; and immediately afterwards the splendid intellect of Ampere succeeded in showing that every magnetic phenomenon then known might be reduced to the mutual action of electric currents. The subject occupied all men's thoughts: and in this country Dr. Wollaston sought to convert the deflection ...
— Faraday As A Discoverer • John Tyndall
... above precautions in passing over an unknown country for the first time; but with the Indians it is different; the sense of locality seems to be innate with them, and they do not require the aid of the magnetic needle to guide them. ...
— The Prairie Traveler - A Hand-book for Overland Expeditions • Randolph Marcy
... entirely, due to Wheatstone, was similar to that of Schilling, and based on the principle enunciated by Ampere—that is to say, the current was sent into the line by completing the circuit of the battery with a make and break key, and at the other end it passed through a coil of wire surrounding a magnetic needle free to turn round its centre. According as one pole of the battery or the other was applied to the line by means of the key, the current deflected the needle to one side or the other. There were five separate ...
— Heroes of the Telegraph • J. Munro
... river seemed to describe a big loop, I had left it three days before, seeing plainly by the conformation of the country that we should strike it again sooner or later. We were marching once more by compass. My men, who had no faith whatever in the magnetic needle, were again almost paralysed with fear that we might not encounter the stream again. A thousand times a day they accused me of foolishness in leaving the river, as they said it would have been better to follow its tortuous ...
— Across Unknown South America • Arnold Henry Savage Landor
... taken at this place excepting for ascertaining the rates of the chronometers, and for the variation and dip of the magnetic needle: the former being 12 degrees 31 minutes West, and the latter 51 degrees 42 minutes 1 second. The situation of the observatory has been long since fixed by the Abbe de la Caille in 20 degrees 10 minutes South latitude, and 57 degrees 29 ...
— Narrative of a Survey of the Intertropical and Western Coasts of Australia] [Volume 2 of 2] • Phillip Parker King
... overestimate distances is almost universal among explorers who set the first distances, and it ought to be reckoned as a factor of error, like the dip of the magnetic needle. But they did their best. And we want to remember that they were the first white men to come up this river, whereas ...
— The Young Alaskans on the Missouri • Emerson Hough
... and completeness of magnetic observations which was obtained by the new method, opened up fields of research which were hardly suspected to exist by those whose observations of the magnetic needle had been conducted in a more primitive manner. We must reserve for its proper place in our course any detailed description of the disturbances to which the magnetism of our planet is found to be subject. Some of these ...
— Five of Maxwell's Papers • James Clerk Maxwell
... symptoms of eruption were most encouraging. She has already quarrelled with all her family,—accusing her father of bigamy, her uncle Benoni of polytheism, her brother Zeno C. of aneurism, and her sister Eudoxy Trithemia of the variation of the magnetic needle. If ever hopes of seeing a perfect case of Primitive Christian were well-founded, I think ...
— The Function Of The Poet And Other Essays • James Russell Lowell
... quadrant, latitude could be determined within a minute, that is to say, to the third of a league. But such an approximate exactitude was not possible in deciding longitudes. When once the different phenomena of the variations of the magnetic needle, either of declination or inclination, should be fully understood, it would be easy; but how to obtain this knowledge? It was well known that in the Indian Sea, between Bourbon, Madagascar, and Rodriguez, a variation of four degrees in the declination of the needle was equivalent to a variation ...
— Celebrated Travels and Travellers - Part 2. The Great Navigators of the Eighteenth Century • Jules Verne
... inception of the culture of the silkworm and the discovery of the magnetic needle are attributed to the predecessors of Yao, probably on the principle that treasure-trove was the property of the King and that if no claimant for the honour could be found it must be attributed to some ancient monarch. The production ...
— The Awakening of China • W.A.P. Martin
... we have a representation of an Egyptian-looking man holding a cup before him. We shall see, as we proceed, that the magnetic needle, or "mariner's compass," dates back to the days of Hercules, and that it consisted of a bar of magnetized iron floating upon a piece of wood in a cup. It is possible that in this ancient relic of the Bronze Age we have a representation ...
— The Antediluvian World • Ignatius Donnelly
... enumerate for you the most essential ones: The discovery of America and its tremendous influence on production; the route to the East Indies around the Cape of Good Hope, taking the place of the former land route by way of Suez for all trade with the East Indies; the discovery of the magnetic needle and the invention of the mariner's compass, and in consequence greater safety and speed and lower insurance rates for all ocean traffic; the waterways established in the interior of the countries, the canals, also the good roads which made possible for the first time a more ...
— The German Classics of The Nineteenth and Twentieth Centuries, Vol. X. • Kuno Francke
... thermology. Every wind that blows is determined by influences partly solar, partly lunar, partly hygrometric; and implies considerations of fluid equilibrium and physical geography. The direction, dip, and variations of the magnetic needle, are facts half terrestrial, half celestial—are caused by earthly forces which have cycles of change corresponding with astronomical periods. The flowing of the gulf-stream and the annual migration of icebergs ...
— Essays on Education and Kindred Subjects - Everyman's Library • Herbert Spencer
... and John Thornton. He broke into the long easy lope, and went on, hour after hour, never at loss for the tangled way, heading straight home through strange country with a certitude of direction that put man and his magnetic needle to shame. ...
— The Call of the Wild • Jack London
... much knowledge of the usual course of nature; and secondly, those are most credulous, whose faculty of comparing ideas, or the voluntary exertion of it, is slow or imperfect. Thus if the power of the magnetic needle of turning towards the north, or the shock given by touching both sides of an electrized coated jar, was related for the first time to a philosopher, and to an ignorant person; the former would be less ready to believe them, than the latter; as he would find nothing similar ...
— Zoonomia, Vol. II - Or, the Laws of Organic Life • Erasmus Darwin
... year of his age, stating, that he had prepared an instrument, which might be called an epitome or miniature of the terraqueous globe, showing, with the assistance of tables, constructed by himself, the variations of the magnetic needle, and ascertaining the longitude, for the safety of navigation. It appears that this scheme had been referred to sir Isaac Newton; but that great philosopher excusing himself on account of his advanced age, all applications were useless, till 1751, when the subject was ...
— Dr. Johnson's Works: Life, Poems, and Tales, Volume 1 - The Works Of Samuel Johnson, Ll.D., In Nine Volumes • Samuel Johnson |
