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  2. Precision Lightweight GPS Receiver - Wikipedia

    en.wikipedia.org/wiki/Precision_Lightweight_GPS...

    Two PLGRs, showing different color schemes. The AN/PSN-11 Precision Lightweight GPS Receiver (PLGR, colloquially "plugger") is a ruggedized, hand-held, single-frequency GPS receiver fielded by the United States Armed Forces.

  3. AN/PSN-13 Defense Advanced GPS Receiver - Wikipedia

    en.wikipedia.org/wiki/AN/PSN-13_Defense_Advanced...

    The Defense Advanced GPS Receiver (DAGR). Coordinates are for Rockwell Collins headquarters in Cedar Rapids, Iowa.. The AN/PSN-13 Defense Advanced GPS Receiver (DAGR; colloquially, "dagger") is a handheld GPS receiver used by the United States Department of Defense and select foreign military services.

  4. Plugger - Wikipedia

    en.wikipedia.org/wiki/Plugger

    Plugger may refer to: . Precision Lightweight GPS Receiver (PLGR), a US military handheld GPS system colloquially known as the "plugger"; Flip-flops, a type of footwear similar to sandals but without securing the ankles

  5. U.S. Military connector specifications - Wikipedia

    en.wikipedia.org/wiki/U.S._Military_connector...

    A MIL-DTL-38999 circular connector plated with a nickel–teflon composite. Left: plug (male) type connector; Right: receptacle (female) type connector) Electrical or fiber-optic connectors used by U.S. Department of Defense were originally developed in the 1930s for severe aeronautical and tactical service applications, and the Type "AN" series set the standard for modern military circular ...

  6. Faucet aerator - Wikipedia

    en.wikipedia.org/wiki/Faucet_aerator

    When an aerator is added to the faucet (or fluid stream), there is a region of high pressure created behind the aerator. Because of the higher pressure behind the aerator and the low pressure in front of it (outside the faucet), due to Bernoulli's principle there is an increase in velocity of the fluid flow.

  7. Fine bubble diffusers - Wikipedia

    en.wikipedia.org/wiki/Fine_bubble_diffusers

    Fine bubble diffusers have largely replaced coarse bubble diffusers and mechanical aerators in most of the developed world and in much of the developing world. The exception would be in secondary treatment phases, such as activated sludge processing tanks, where 85 to 90 percent of any remaining solid materials (floating on the surface) are ...