I've realized that I'm not always going to have time for a full post. And perhaps some of you would like things in small bites. So I will sometimes publish short posts called factoids. This one is on the speed of light.
The constant c in Einstein's famous equation E=mc2, is the speed of light. c is 186,282 mi/sec, or 299,792 km/sec. That means light could go around the equator of the Earth (in some conduit) about 7 times in a second. On the other hand, the sun is so far away, 93 million miles, that it takes light more than 8 minutes to get here from there.
Monday, January 7, 2008
Physics Factoid: The Speed of Light
[confidence level: established, my qualifications: trained]
Posted by eyesopen at 9:07 AM
Labels: factoid, physics explanation, relativity
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