Radiocarbon dating dates back to

C at all if they really were over a billion years old, yet the radiocarbon lab reported that there was over 10 times the detection limit.Thus they had a radiocarbon ‘age’ far less than a million years!So, we have a “clock” which starts ticking the moment something dies.

In this article, we will examine the methods by which scientists use radioactivity to determine the age of objects, most notably carbon-14 dating.Familiar to us as the black substance in charred wood, as diamonds, and the graphite in “lead” pencils, carbon comes in several forms, or isotopes.One rare form has atoms that are 14 times as heavy as hydrogen atoms: carbon-14, or C ratio gets smaller.­ ­You probably have seen or read news stories about fascinating ancient artifacts.At an ar­chaeological dig, a piece of wooden tool is unearthed and the archaeologist finds it to be 5,000 years old.

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