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  2. Perimeter surveillance radar - Wikipedia

    en.wikipedia.org/wiki/Perimeter_Surveillance_Radar

    Perimeter surveillance radar (PSR) is a class of radar sensors that monitor activity surrounding or on critical infrastructure areas such as airports, [1] seaports, military installations, national borders, refineries and other critical industry and the like. Such radars are characterized by their ability to detect movement at ground level of ...

  3. List of Yamaha Corporation products - Wikipedia

    en.wikipedia.org/wiki/List_of_Yamaha_Corporation...

    Genos series (The successor series to the Tyros and the original PSR-SX series) Genos (31 August 2017) Genos2 (15 November 2023) Oriental Arranger Workstations. PSR-A1000 (2002, Oriental version of Yamaha PSR-1100) PSR-OR700 (2007, Oriental version of Yamaha PSR-S700) PSR-A2000 (2012, Oriental model and black version of Yamaha PSR S710. And the ...

  4. Yamaha Portasound - Wikipedia

    en.wikipedia.org/wiki/Yamaha_Portasound

    Yamaha Portasound electronic musical keyboards were produced by the Yamaha Corporation during the 1980s and 1990s. The name suggests the instruments' portability, with battery operation being a consistent feature across the line.

  5. Sony Reader - Wikipedia

    en.wikipedia.org/wiki/Sony_Reader

    The first model was the PRS-500 released in September 2006 and was related to the earlier Sony Librie, the first commercial E Ink e-reader in 2004 using an electronic paper display developed by E Ink Corporation. [1] The last model was the PRS-T3, after which Sony announced it would no longer release a new consumer e-reader. [2]

  6. Five-hundred-meter Aperture Spherical Telescope - Wikipedia

    en.wikipedia.org/wiki/Five-hundred-meter...

    Although the reflector diameter is 500 m (1,600 ft), held in the correct parabolic shape and "illuminated" by the receiver, only a circle of 300 m diameter is useful at any one time. [ 21 ] : 13 The telescope can be pointed to different positions on the sky by illuminating a 300-meter section of the 500 meter aperture.

  7. Remington MSR - Wikipedia

    en.wikipedia.org/wiki/Remington_MSR

    The MSR initially won the PSR competition, and was called the Remington Mk 21 Precision Sniper Rifle in U.S. military service. [3] [4] However, it was then decided that the Mk 21 did not conform to SOCOM requirements at the time in 2018, and the program was re-competed with the Barrett MRAD selected in 2019 as the Mk 22 Advanced Sniper Rifle ...

  8. Precision Sniper Rifle - Wikipedia

    en.wikipedia.org/wiki/Precision_Sniper_Rifle

    The Precision Sniper Rifle (PSR) was a program by United States Special Operations Command to replace all bolt-action sniper rifles in use by United States special operations snipers with a single bolt-action rifle chambered for a large caliber Magnum round such as .300 Win Mag and .338 Lapua Magnum. The solicitation was placed on January 15, 2009.

  9. Hulse–Taylor pulsar - Wikipedia

    en.wikipedia.org/wiki/Hulse–Taylor_pulsar

    The Hulse–Taylor pulsar (known as PSR B1913+16, PSR J1915+1606 or PSR 1913+16) is a binary star system composed of a neutron star and a pulsar which orbit around their common center of mass. It is the first binary pulsar ever discovered.