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Radiocarbon dating - Wikipedia
Seventy years ago, American chemist Willard Libby devised an ingenious method for dating organic materials. His technique, known as carbon dating, revolutionized the field of archaeology. Now researchers could accurately calculate the age of any object made of organic materials by observing how much of a certain form of carbon remained, and then calculating backwards to determine when the plant or animal that the material came from had died. An isotope is a form of an element with a certain number of neutrons, which are the subatomic particles found in the nucleus of an atom that have no charge. While the number of protons and electrons in an atom determine what element it is, the number of neutrons can vary widely between different atoms of the same element.
Thanks to Fossil Fuels, Carbon Dating Is in Jeopardy. One Scientist May Have an Easy Fix
Figuring out how old something is can be hard. For short times, the number of winters that have come and gone since the event can simply be counted. But this gets trickier over longer times.
Willard Frank Libby , born Dec. For this development he was honoured with the Nobel Prize for Chemistry in After graduation, he joined the faculty at Berkeley, where he rose through the ranks from instructor to assistant professor to associate professor