Radiocarbon dating sample size
They used pottery and other materials in sites to date 'relatively'.
They thought that sites which had the same kinds of pots and tools would be the same age.
You can work out that after about 50 000 years of time, all the radiocarbon will have gone.
Therefore, radiocarbon dating is not able to date anything older than 60 or 70 000 years old.
The aim here is to provide clear, understandable information relating to radiocarbon dating for the benefit of K12 students, as well as lay people who are not requiring detailed information about the method of radiocarbon dating itself.In the 1940s, scientists succeeded in finding out how long it takes for radiocarbon to disappear, or decay, from a sample of carbon from a dead plant or animal.Willard Libby, the principal scientist, had worked in the team making the nuclear bomb during World War 2, so he was an expert in nuclear and atomic chemistry.Because carbon is very common on Earth, there are alot of different types of material which can be dated by scientists.