The fieldwork is complete, and the results are in! Read the reports, explore the archives, and learn more about the amazing work we've done on some very special sites. This step-by-step course will guide you through what archaeologists do and how you can get involved! Archaeology isn't just for adults!
The Story of Carbon Dating
How Global Warming is Affecting the Accuracy of Radiocarbon Dating | Real Archaeology
Radiocarbon dating is one of the best known archaeological dating techniques available to scientists, and the many people in the general public have at least heard of it. But there are many misconceptions about how radiocarbon works and how reliable a technique it is. Radiocarbon dating was invented in the s by the American chemist Willard F. Libby and a few of his students at the University of Chicago: in , he won a Nobel Prize in Chemistry for the invention.
How has radiocarbon dating changed archaeology?
The method was developed by physicist Willard Libby at the University of Chicago who received the Nobel Prize for the discovery in The radioactive isotope 14 C is created in the atmosphere by cosmic radiation and is taken up by plants and animals as long as they live. The C method cannot be used on material more than about 50, years old because of this short half-life.
Though archaeologists can come up with good guesses about the date of artifacts through different processes, most methods of dating are trumped by a relatively new technique called radiocarbon dating. Developed in , it is considered the most useful way of determining the dates of artifacts for archaeologists. Since 14 C is radioactive, it decays at a relatively quick exponential rate Figure 1 , while non-radioactive carbon 12 C does not.