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Upside down skyscrapers. Vacuum tubes whisking away trash. Welcome to the future of cities as they begin exploring the next urban frontier
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Just as people were experimenting with the uses of broadcast TV in the 1930s, so too were they envisioning ways to utilize closed-circuit TV in the 1950s
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This week, learn about past Olympians, get funky with George Clinton and other music legends, and kick off this summer's Folklife Festival
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Archaeologists are finding signs of surprisingly sophisticated behavior in the ancient fossil record
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Mocked by their peers and kicked out of Harvard, the pioneering athletes were ahead of their time... and their competition in Athens
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Edmontosaurus has often been called the "cow of the Cretaceous", but did this dinosaur chew like a mammal?
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Now kept at the American Geographical Society in New York, the globe is precious not for its age or beauty, but for the explorers who signed it
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Besides how to be a good neighbor, Mr. Rogers taught us other lessons, especially about the impact of a comforting change of clothes
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Researchers have assumed Paranthropus boisei used its giant teeth to crack open nuts, but conflicting evidence suggests the hominid ate more like a cow
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If you could put a wild cheetah up against a greyhound in a race, the cheetah would win, no problem. But why?
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Looking closely at a pair of meteorites originating from Mars, researchers now believe the planet likely holds vast reservoirs of water deep underground
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A new documentary gives voice to victims in the military and may be a key force behind a new initiative to put an end to the violence
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Bikinis may have been illegal in 1900, but they were all the rage in ancient Rome
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