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NEWTONSLIGHT

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NEWTONSLIGHT

Heavy gases

I seen a chemist on tv about a month ago playing with a invisible, inert, nontoxic gas that is 3 times heavier than oxygen. It is used to put out fires and if inhaled does the opposite of helium, it...
19:53 Fri 20th Jul 20073 answers, last by NEWTONSLIGHT 21:38 Sat 21st Jul 2007

Only 1 question