S1·E7 The Clean Room
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.
Rate this episode
Your rating is anonymous and can be changed later.
Be the first viewer to rate it.
Director & writers
Guest stars
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 ...