If you ask the people who run America's electric utilities what keeps them up at night, a surprising number will say solar power. Specifically, rooftop solar. That seems bizarre at first. Solar power provides just 0.4 percent of electricity in the United States — a minuscule amount. Why would anyone care?
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What does it mean when "entertainment" games improve players' test scores more than brain-training programs?
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Until now, scientists had better maps of the surface of Mars than of this ocean floor. These images show for the first time a dramatic underwater landscape with mountains higher than Mont Blanc and ridges deeper than the Grand Canyon – all 4.5 kilometres below the surface of the Southern Indian Ocean. The discoveries were made as part of the hunt for the missing Malaysian airliner, flight MH370, which disappeared six months ago.
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The tooth of a 220-million-year-old semi-aquatic phytosaur has been found embedded in the thigh bone of a terrestrial rauisuchid. Both are giant prehistoric reptiles distantly related to the modern crocodile.
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Elon Musk argues that we must put a million people on Mars if we are to ensure that humanity has a future.
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In 27 August 1883, the Earth let out a noise louder than any it has made since. It was 10:02 AM local time when the sound emerged from the island of Krakatoa, which sits between Java and Sumatra in Indonesia. It was heard 1,300 miles away in the Andaman and Nicobar islands (“extraordinary sounds were heard, as of guns firing”)
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Remember that potato clock you made for your high school science fair? Apparently, the bar has been raised quite a bit. Ann Makosinski, a 15 year old student from Canada, made a flashlight for her science fair project – a flashlight powered entirely by the body heat of the hand holding it.
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