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23-Nov-2019 22:18

Forensic experts use radiocarbon dating to establish if an individual died recently (perhaps a matter for the Justice Department) or in antiquity (a matter for the archaeologist). Living things assimilate radiocarbon from the atmosphere.

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Other cells, like those in the adult brain and nervous system, have been viewed as more like the Mona Lisa. Spalding, once a postdoc at the Karolinska Institute in Stockholm, Sweden and now a professor there, knew there were tantalizing hints that the adult hippocampus—a seahorse-shaped region deep in the brain that is important for memory and learning—could regenerate neurons.The proliferation of atmospheric thermo-nuclear testing in the early 1950s until 1963 added vast amount of artificial radiocarbon (bomb carbon) in the atmosphere, increasing global radiocarbon levels by almost 100% compared to the pre-1950 level.

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