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A comment on Lab-grown diamonds threaten viability of the real gems. Parent comment

Re:Lab-grown diamonds threaten viability of the real gems by LMYahooTFY on Friday March 09, 2018 @11:07AM (#16552677)
That's fascinating to me, I didn't realize anthropogenic radiation levels were significant enough to offer a control for molecular examination of human brains in the general population.

It's almost a bit unnerving.

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Re:Lab-grown diamonds threaten viability of the real gems by jacobolus on Friday March 09, 2018 @12:33PM (#16553326)
It’s not “radiation levels” per se. Nuclear bomb testing in the mid 20th century dramatically increased the amount of carbon-14 in the atmosphere, which has subsequently been gradually declining. https://en.wikipedia.org/wiki/Carbon-14#Origin
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