Aired (February 3, 2019): Invented by the Egyptians in the 4th century, water wheels can convert flowing water as a useful form of energy during the ancient times. How are these made? Find out in this ...
Let's say you want to go to the Great Outdoors and get away from it all. But not that away from it all. Thomas Kim's built just the DIY phone charger for you. Kim's got some water bottles, plastic ...
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