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Car Batteries Run on Relativity Sunday, January 16, 2011 - Anuradha Menon Home >> Headlines >> General Science   
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Thank relativity every time your car starts. Lead-acid batteries get about 80 per cent of their voltage from special relativistic effects. The transfer of electrons between two forms of lead in the batteries yields a potential of more than 2 volts, higher than most other batteries. But why they are so good has been a puzzle. Lighter weight tin, for example, which sits one row above lead in the periodic table, is too feeble to power a battery. (source: newscientist.com)
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