What ever happened to this guy and his invention ?

Published 10 years ago in Science

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What happens if our body is exposed to Vacuum

Published 11 years ago in Science. Submitted by aravind7

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Chemical Reaction NH4Cr2O7 + HgSCN

Published 10 years ago in Science. Submitted by VikingO

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Reaction of iodine with 90% alcohol

Published 10 years ago in Science

Experience in Russian school.

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Numberphile 158,962,555,217,826,360,000

Published 11 years ago in Science

Part 2 can be found Here

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