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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.
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The University of Oxford's Dr Robert Srygley, one of the world's leading insect experts, said that the new study "is a major advance toward finding the magnetic compass in this nomadic ant.
Miniscule magnets in ant antennae act as internal GPS by Asian News International
Following the bearing, by an inbuilt compass in GPS unit or an external magnetic compass, would then lead the user to the destination.
GPS Navigation - Exploring the Great Outdoors by Taylor Gray / Computers and Internet community
Of course magnetics has found an important place in medical imaging (MRI) and at least two animal groups (sea turtles and bats) have been studied for their ability to use a sixth sense to navigate which may be related to an anatomical built-in magnetic compass.
What do cows dream about? and will gps be the next new sleep ... by Grenard, Steven / FOCUS: Journal for Respiratory Care & Sleep Medicine
 
 
 
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