A new atomic clock is one of the world’s best timekeepers, researchers say — and after years of development, the “fountain”-style clock is now in use helping keep official U.S. time. Known as NIST-F4, ...
Sailors assigned to Unmanned System (UMS) Platoon 142 attached to Explosive Ordnance Mobile Unit (EODMU) 5, prepare the global positioning system (GPS) with location points for the Remote ...
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