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US military tests PSAP Voyager underwater scanner probes powered directly from the water
The PSAP Voyager hydrophones are self-contained, as they use the temperature difference in the surrounding water to power ...
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10 Fascinating Facts About U.S. State Borders
Four Corners Monument The Four Corners Monument is a unique place in the United States where visitors can stand in four ...
What makes Hawaii in the US the ‘Rainbow Capital of the World’
Hawaii is being recognized for its frequent and stunning rainbows, earning the title of the 'Rainbow Capital of the World.' ...