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magnetic compass |
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magnetic compass [mag′ned·ik ′käm·pəs] (navigation) A compass depending for its directive force upon the attraction of the horizontal component of the earth's magnetic field for a magnetized needle or sensing element free to turn with a minimum of friction in any horizontal direction. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Gurney, formerly a yacht designer and now a writer living in Suffolk, England, has written a richly detailed history of the most important navigational device of all time--the magnetic compass. The battery-powered Skyseeker has an on-board Global Positioning System and a magnetic compass, along with a pan-tilt camera that can give commanders a real-time view of crime scenes, said sheriff's Cmdr. 95) by Alan Gurney provides an eye-opening survey of the history of the magnetic compass, which for a thousand years was the only instrument sailors used for navigation. |
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