Links for Cosmos: A Spacetime Odyssey S1E7: The Clean Room

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Episode 7

2,269 watches

April 20, 2014
A look at the work of geochemist Clair Patterson (1922-95), who calculated the age of the Earth—4.5 billion years—using a uranium-lead dating method, and also drew attention to the dangers of lead in the atmosphere and the food chain.
April 20, 2014
A look at the work of geochemist Clair Patterson (1922-95), who calculated the age of the Earth—4.5 billion years—using a uranium-lead dating method, and also drew attention to the dangers of lead in the atmosphere and the food chain.