Carbon dating discovery

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It was while working in the Kent Laboratory building in the s that Prof. Willard Libby and his UChicago associates developed radiocarbon dating -- an innovative method to measure the age of organic materials. Scientists soon used the technique on materials ranging from the dung of a giant sloth from a Nevada cave; seaweed and algae from Monte Verde, Chile, the oldest archaeological site in the Western Hemisphere; the Shroud of Turin; and the meteorite that created the Henbury Craters in northern Australia. The society will officially recognize the achievement at 4 p. This year marks the 70th anniversary of Libby's first publication on radiocarbon dating, which appeared in the June 1, issue of Physical Review.
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The Story of Carbon Dating

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A Science Odyssey: People and Discoveries: Libby introduces radiocarbon dating

Dead Sea Scrolls: What are They? The Dead Sea Scrolls have been called the greatest manuscript discovery of modern times. They were discovered between and in eleven caves along the northwest shore of the Dead Sea. This is an arid region 13 miles east of Jerusalem and 1, feet below sea level. The Dead Sea Scrolls are comprised of the remains of approximately to separate scrolls, represented by tens of thousands of fragments. The texts are most commonly made of animal skins, but also papyrus and one of copper. They are written with a carbon-based ink, from right to left, using no punctuation except for an occasional paragraph indentation.
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UChicago site of radiocarbon dating discovery named historic landmark

At 12, years old, the Shigir Idol is by far the earliest known work of ritual art. Only decay has kept others from being found. Using radiocarbon dating, scientists can uncover counterfeit artworks using smaller than ever samples of canvas and paint chips. A cave drawing in Borneo is at least 40, years old, raising intriguing questions about creativity in ancient societies. Cave paintings in Spain were made by Neanderthals, not modern humans, archaeologists reported.
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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. Over the timescale of human history, maybe someone turns to their library to study the histories that have been written. From that, they can piece together how long ago something happened.
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