Ask the Times
By TIMES WIRES
Published October 30, 2006
In Einstein's equation E=mc , E stands for energy, m stands for mass and c stands for the speed of light. Is c the first letter of a word that means speed of light?
Yes, c stands for celerity, which means swiftness, or speed.
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[Last modified October 30, 2006, 02:08:39]
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