«Cosmos: A Spacetime Odyssey» – Season 1 Episode 7 watch online
Episode Title: «The Clean Room»
Episode Released: 04.20.2014
Season number: 1
Episode number: 7
Episode Description: Beware, spoilers! To read - hover over the text.
May 2000, some of the calendar year does not mislead you. The history of the Earth has so much more, and the professor will explain how scientists were able to prove it. An important contribution to steel research Clair Patterson, which led to an unexpected and useful discoveries in other areas.