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Horsepower How much power does it really take to drive 65? How to measure it yourself.
Batteries and Energy Storage Can batteries store enough energy to power your car?
Photons Can cell phones cause cancer? What about x-rays? A guide to photons.
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http://zfacts.com/p/787.html | 01/18/12 07:25 GMT Modified: Tue, 01 May 2007 23:16:01 GMT
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