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Thread: Sulfur Hexafluoride
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10-02-2008, 04:35 PM #1
Sulfur Hexafluoride
Helium is about 6 times lighter than air and that is what causes the high pitch. Sulfur hexafluoride is about 6 times heavier than air...
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10-02-2008 04:35 PM # ADS
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