Www c14dating com

Dieses Kohlendioxyd, in welchem winzige Mengen von C14 enthalten sind, brauchen die Pflanzen - durch Photosynthese fhren sie es ihrer Nahrung zu.Da Tiere und Menschen pflanzliche Nahrung zu sich nehmen, wird C14 auch vom Menschen und vom Tier aufgenommen.

Its presence in organic materials is the basis of the radiocarbon dating method pioneered by Willard Libby and colleagues (1949) to date archaeological, geological and hydrogeological samples.De methode is bruikbaar voor materialen tot circa 60.000 jaar oud.De techniek werd in 1949 ontdekt door Willard Frank Libby en zijn collega's van de Universiteit van Chicago.Carbon-14 was discovered on February 27, 1940, by Martin Kamen and Sam Ruben at the University of California Radiation Laboratory in Berkeley, California.Its existence had been suggested by Franz Kurie in 1934. The primary natural source of carbon-14 on Earth is cosmic ray action on nitrogen in the atmosphere, and it is therefore a cosmogenic nuclide.

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