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Cosmos
S01 E07 / THE CLEAN ROOM
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EP 01
STANDING UP IN THE MILKY WAY
EP 02
SOME OF THE THINGS THAT MOLECULES DO
EP 03
WHEN KNOWLEDGE CONQUERED FEAR
EP 04
A SKY FULL OF GHOSTS
EP 05
HIDING IN THE LIGHT
EP 06
DEEPER, DEEPER, DEEPER STILL
EP 07
THE CLEAN ROOM
EP 08
SISTERS OF THE SUN
EP 09
THE LOST WORLDS OF PLANET EARTH
EP 10
THE ELECTRIC BOY
EP 11
THE IMMORTALS
EP 12
THE WORLD SET FREE
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THE CLEAN ROOMTo determine the true age of the Earth, geochemist Clair Patterson developed the uranium-lead dating method to make an unprecedented discovery – calculating Earth's age of 4.5 billion years. But Patterson's groundbreaking discoveries were just beginning. Patterson made it his mission to draw public attention to the detrimental effects of lead in the environment and dedicated his career to fighting against the petroleum and chemical industry, eventually achieving public health's biggest victory of the 20th century.
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