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Gold/Mining/Energy : ECHARTERS

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From: E. Charters	10/26/2011 7:02:24 PM
	3 Recommendations of 3744

Why is gold yellow? Silly question? No, not actually. It is one of only three metals that are not silver or grey. The surprising answer is it is because of the high speed of the molecules. "Not until the 1970's did theoretical chemists acknowledge that the properties of a select group of elements could only be explained by Einstein's theory of special relativity. Electrons in gold atoms travel at such high speeds that they produce relativistic effects that impart a yellow hue, while all other elemental metals — except for copper and osmium — appear gray or silver."

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