Cosmos — Season 1, Episode 7: The Clean Room
Documentary • 44 min • 2 seasons, 26 episodes • ★ 8.5/10
Episode synopsis
To 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.
About Cosmos
Famed astrophysicist Neil deGrasse Tyson provides clarity for the vision of the cosmos as he voyages across the universe with never-before-told stories that delve into the scientific concepts of the laws of gravity and the origins of space and time.
More episodes from Season 1
- E1Standing Up in the Milky Way
- E2Some of the Things that Molecules Do
- E3When Knowledge Conquered Fear
- E4A Sky Full of Ghosts
- E5Hiding in the Light
- E6Deeper, Deeper, Deeper Still
- E8Sisters of the Sun
- E9The Lost Worlds of Planet Earth
- E10The Electric Boy
- E11The Immortals
- E12The World Set Free
- E13Unafraid of the Dark