Radiocarbon dating how stuff works
When an organism dies, it stops absorbing carbon-14, which then begins to decay.By measuring how much carbon-14 still remains in an organic compound, you can calculate how old it is.No other scientific method has managed to revolutionize man’s understanding not only of his present but also of events that already happened thousands of years ago.Archaeology and other human sciences use radiocarbon dating to prove or disprove theories.
This is because bone is a composite material that includes both .
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Howstuffworks "How Carbon-14 Dating Works" radiocarbon WEB-info The method How accurate are Carbon-14 and other radioactive dating methods?
Carbon-14 is constantly being formed in the atmosphere as cosmic rays interact with nitrogen gas, and it gets absorbed by every living thing on Earth.
Because carbon-14 is mildly radioactive, it has a specific half-life (rate of decay).