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.After the war he became very interested in peaceful applications of atomic science.
Animals eat plants, and some eat other animals in the food chain.
Carbon follows this pathway through the food chain on Earth so that all living things are using carbon, building their bodies until they die.
Today, there are over 130 radiocarbon dating laboratories around the world producing radiocarbon dates for the scientific community.
The C14 method has been and continues to be applied and used in many, many different fields including hydrology, atmospheric science, oceanography, geology, palaeoclimatology, archaeology and biomedicine.
After another 5568 years, again another half will have disappeared.