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Birkbeck Explains: What is radiocarbon dating?

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Dr Becky Briant from Birkbeck's Department of Geography explains how radiocarbon dating - a method for determining the age of an object containing organic material - works, and why it is used. She explains: "The physics of radiocarbon dating is the physics of radioactive decay. All organic things contain carbon... over time, the amount of radioactive carbon will decrease." Measuring this can tell you how old something is, back to 30,000 years reliably. For more information about Geography at Birkbeck: http://www.bbk.ac.uk/geography The Birkbeck Explains video series challenges the expert academics of Birkbeck, University of London, to answer a probing question in simple terms. Have a question? Ask in the comments below. Watch the #BirkbeckExplains Youtube playlist: https://www.youtube.com/playlist?list=PL2Fy-5oxIlb44kHAgV98HVzXtISW5BHNX .
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