Radiometric dating is possible because david deangelo double your dating what every man should

organisms, geologists employ a variety of techniques.

A coin, vessel, or other common artifact could link two archaeological sites, but the possibility of recycling would have to be considered.

Dinosaur bones, on the other hand, are millions of years old -- some fossils are billions of years old.

To determine the ages of these specimens, scientists need an isotope with a very long half-life.

The older an organism's remains are, the less beta radiation it emits because its C-14 is steadily dwindling at a predictable rate.

So, if we measure the rate of beta decay in an organic sample, we can calculate how old the sample is. Question: Kieth and Anderson radiocarbon-dated the shell of a living freshwater mussel and obtained an age of over two thousand years.