About carbon dating

­ ­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.

Potassium-40 is another radioactive element naturally found in your body and has a half-life of 1.3 billion years.The following table shows all the Qumran-related samples that were tested by Zurich (Z), Tucson (T) and Libby (L).The column headed "14C Age" provides a raw age before 1950 for each sample tested.­ ­As soon as a living organism dies, it stops taking in new carbon.The ratio of carbon-12 to carbon-14 at the moment of death is the same as every other living thing, but the carbon-14 decays and is not replaced.