Flying is literally a drag. But does it have to be? This is Sandra Tsing Loh with the Loh Down on Science. Airplanes feel drag. It comes from pushing against air molecules. And we need gigantic engines and tons of jet fuel to get around it. Is there a way
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They paved paradise, put up a parking lot, and then what? This is Sandra Tsing Loh with the Loh Down on Science. One of the many ways modern societies lose valuable drinking water is through toilets. So says environmental engineer Stanley Grant of the University of California, Irvine. He and
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