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Earlier, "primitive" cultures used man or animal power to run their machines (Roman boats had benches filled with human rowers) and some countries still have donkeys or dogs walking in a circle, bringing up water from the well. With concern about emissions from cars and power plants, should we return to that today? Some gyms are actually giving it a try.
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It used to be rare for skywatchers to actually see a UFO, but it is becoming increasingly common. In this case, the report claims that the group was approached as close as 500 feet by two objects.
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