radiocarbon :

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radiocarbon


  • n  a radioactive isotope of carbon

  • From the well-preserved contents of middens, scientists using radiocarbon dating can peer thousands of years into the past to discern when climates changed, why civilizations .
  • They distributed small samples to three laboratories for radiocarbon dating.
  • Each then performed at least three radiocarbon measurements on its sample.
News & Articles

  • Radiocarbon Clues Help Track Down Poached Elephant Ivory
    Nuclear bomb tests in the 1950s and '60s pumped a lot of radiocarbon into the atmosphere. It went everywhere, including into plants that elephants eat. By measuring the levels of this carbon in elephant tusks, scientists can tell when an elephant died — and if the ivory is being traded illegally.
    July 2, 2013 - NPR
Quotes

  • Raymond Rogers in eReleases (press release)
    The radiocarbon sample has completely different chemical properties than the main part of the shroud relic,explains Rogers. "The sample tested was dyed using technology that began to appear in Italy about the time the Crusaders' last...
  • Chris Stringer in BBC News
    They appear to have been hunting horses: "One of the puzzles from the previous radiocarbon dating was that some of the evidence for human occupation seemed to be divorced from the evidence for horse butchery," said Chris Stringer. "Now they...

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