Gledaj Cosmos: A Spacetime Odyssey - Sezona 1 Epizoda 7 sa Prevodom

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.
Uloge: Neil deGrasse Tyson, Carl Sagan, Stoney Emshwiller,