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Using helium to cool superconductor electricity lines can greatly reduce energy lost.
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The 1918 flu killed at least 50 million people, more than died from battle in World War I.
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After Sandy nearly wiped out landlines in lower Manhattan, Verizon rebuilds its network.
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This place is a paradise for geologists and one of our national treasures. It is, of cour
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340 million years ago, a warm shallow sea covered all of the American Southwest.
