S1·E7 The Clean Room
- Episode
- Season 1, Episode 7
- Air Date
- April 20, 2014
- Runtime
- 44 minutes
- Director
- Brannon Braga
- Writers
- Steven Soter, Ann Druyan
- Score
- 8.4/10 (28 TMDB votes)
- Story Type
- Core Character Arc
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.
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Frequently Asked Questions
When did Season 1 Episode 7 of Cosmos air?
Season 1, Episode 7 ('The Clean Room') originally aired on April 20, 2014.
How long is Season 1 Episode 7 ('The Clean Room')?
The runtime for this episode is approximately 44 minutes.
What happens in Cosmos Season 1 Episode 7?
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 ...
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