US EditionTime machine: How carbon dating brings the past back to life
- In the 1990s, French scientist Lucile Beck described 'surprise and disbelief' when carbon dating revealed Chauvet Cave art in southeast France was 36,000 years old.
- This breakthrough followed carbon dating, or carbon-14, a technique that measures carbon isotopes in samples to determine their age.
- The Paris laboratory uses carbon dating on over 3,000 samples annually, including pigments like lead white, which has been used in artworks and buildings since the fourth century BC.
- Carbon dating also revealed Notre-Dame cathedral's iron staples date from its original construction, not later restorations, and its discoverer won a Nobel Prize in 1960.
- Beck emphasized preserving corrosion traces, saying they 'also tell about the past,' underscoring carbon dating's role in revolutionizing archaeology and uncovering historical secrets.
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Unmasking a counterfeiter, dating the iron staples of Notre-Dame or establishing a chronology of the climate: in a CEA laboratory, a particle accelerator goes back time thanks to carbon 14.The dating technique, which won a Nobel Prize to its discoverer Willard Frank Libby in...
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