"' Escutcheon "': Quarterly, 1st and 4th, Ermine on a Bend Azure a Magnetic Needle pointing at a Polar Star Or ( Petty ); 2nd and 3rd, Argent a Saltire Gules a Chief Ermine ( FitzMaurice)
32.
He showed that a magnetic needle, made to oscillate over nonferrous surfaces, such as water, glass, copper, etc ., falls more rapidly in the extent of its oscillations according as it is more or less approached to the surface.
33.
Another work, " An Account of the Methods used to describe Lines on Dr . Halley's Chart of the terraqueous Globe, showing the variation of the magnetic needle about the year 1756 in all the known seas, & c.
34.
The paper shows how he tested many of his theories in his laboratory . " A New Suspension of the Magnetic Needle " describes a detector he built to measure the Earth's vertical current, and data he gathered using this detector.
35.
In 1819, Scoresby gained election as a fellow of the Royal Society of Edinburgh, and about the same time communicated a paper to the Royal Society of London : " On the Anomaly in the Variation of the Magnetic Needle ".
36.
In 1822 Arago in 1824 made the important discovery that when a copper disc is rotated in its own plane, and if a magnetic needle be freely suspended on a pivot over the disc, the needle will rotate with the disc.
37.
The film, loosely inspired by contemporary events and by Jules Verne's " Voyages Extraordinaires ", follows the comic misadventures of an international group of explorers on an expedition to the North Pole, where they encounter a man-eating frost giant and a dangerous magnetic needle.
38.
I have tried, in very simple term in the following pages a brief history of magnetic Compass and clear description of declination of the magnetic needle from the true direction including the method by which to find out the standard direction ( cardinal points ).
39.
In April 1933, after experimentation with various designs, Vohlonen applied for a patent from the Finnish National Board of Patents and Registration for a compact liquid-filled field compass, in which the magnetic needle and damping fluid were completely sealed into a unitary fused celluloid capsule.
40.
Barlow's work was on practical aspects of magnetism : improvements in the hanging of compasses at sea, for the discovery of the difference between iron and steel for magnetic purposes, and for the proper way of touching magnetic needles, and of piercing and cementing lodestones.
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