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Thus the less of it that remained in an object, in proportion to normal carbon, the older the object was.

use of radioactive isotopes in carbon dating-45use of radioactive isotopes in carbon dating-58use of radioactive isotopes in carbon dating-55

The prodigious mobilization of science that produced nuclear weapons was so far-reaching that it revolutionized even the study of ancient climates.

Nuclear laboratories, awash with funds and prestige, spun off the discovery of an amazing new technique — radiocarbon dating.

The radioactive isotope carbon-14 is created in the upper atmosphere when cosmic-ray particles from outer space strike nitrogen atoms and transform them into radioactive carbon.

Perhaps you have heard of Ice Man, a man living in the Alps who died and was entombed in glacial ice until recently when the ice moved and melted.

The man's body was recovered and pieces of tissue were studied for their C content by accelerator mass spectroscopy.




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