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Q&A Accuracy of timekeeping based on the age of Earth

Try radiometric dating. Accuracy: $\pm 0.11 %$ . Radiometric dating - see also the excellent USGS page - uses the decay of radioactive isotopes of elements to determine the age of a sample. It works...

posted 8y ago by HDE 226868‭ · last activity 8y ago by HDE 226868‭

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#1: Attribution notice removed by

System‭ · 2020-06-01T14:13:50Z (almost 5 years ago)

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Source: https://worldbuilding.stackexchange.com/a/63297
License name: CC BY-SA 3.0
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