Secrets of the Earth (2013)
Computer graphics, visual analogies and a recurring cast of expert scientists combine to reveal new aspects of the world you think you know, from canyons of gravity that warp space and time to rain triggered by cosmic rays.
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Seasons & Episode
2
1
Episode 4 - Sinkholes
November. 10,2014
A look at sinkholes and the dangers they pose to people, animals and property.