Humans have been stealing energy from flowing water for at least two thousand years. It wasn’t until the advent of electricity that things really got cookin’. All we need to do now is to work out the harmful environmental impacts of this green energy.
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Selects: How Narcolepsy Works
52:41

Rope, yeah ROPE!
43:31

Short Stuff: Did a shipwreck double the size of the United States?
11:46