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speed of light |
Also found in: Wikipedia, Hutchinson | 0.09 sec. |
speed of lightAll electromagnetic radiation, including light, radio transmission and electricity, travels at approximately 186,000 miles (300,000 kilometers) per second; more than seven times around the equator in one second. More precisely, the speed is 299,792,458 meters per second in a vacuum. 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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nbsp;into one that travels at the speed of sound in a semiconducting material, then back into a speed-of-light wave. |
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