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electromagnetic |
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electromagnetic /elec·tro·mag·net·ic/ (-mag-net´ik) involving both electricity and magnetism. electromagnetic [-magnet′ik] Etymology: Gk, elektron, Magnesia, ancient source of lodestone 1 pertaining to magnetism that is induced by an electric current. 2 pertaining to radiation such as light, microwaves, x-rays, gamma rays, or radio waves. electromagnetic pertaining to or emanating from electromagnetism. electromagnetic flowmeter measures the electromagnetic force generated when the blood flowing through a vessel of known diameter passes through a magnetic field at right angles to the magnetic lines of force. electromagnetic radiation transport of energy through space. Examples are x-rays, radio waves. electromagnetic receptors receptors which perceive electromagnetic stimuli. 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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A new electromagnetically actuated valve-gate cylinder reportedly delivers 110 times more accurate position control than hydraulic or pneumatic operation. Traditional flywheels can lose energy and break down through the friction created by the spinning wheel, but the flywheels developed by Pentadyne minimize that problem two ways: they are made of light-weight carbon fiber and are electromagnetically suspended, meaning they don't touch anything as they spin at 54,000 revolutions per minute (several times faster than a Formula 1 race car engine). But technological hurdles may slow that plan, because to achieve a thinner antenna the complex belt and gear system that now positions the tracking panels must be replaced by a solid-state setup that tracks satellite signals electromagnetically. |
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