When did Cosmos Season 1 Episode 7 air?
Cosmos Season 1 Episode 7 aired on April 20, 2014.
Cosmos
An epic adventure in time, space and life.
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.
Created by: Ann Druyan, Steven Soter
Season 1 · Episode 7
The Clean Room
Apr 20, 2014·44m
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.
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Direct answers for episode-level questions and details.
How long is Cosmos Season 1 Episode 7?
This episode runs for approximately 44 minutes.
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