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.
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
The same effect was also used in understanding brain development by looking at Carbon isotopes in brains of people born before WW2 to determine which cells were formed when.