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  2. Laser guide star - Wikipedia

    en.wikipedia.org/wiki/Laser_guide_star

    Powerful laser guide star system at the Paranal Observatory. The actual laser guide star is the small spot above the apparent end of the laser beam. A laser guide star is an artificial star image created for use in astronomical adaptive optics systems, which are employed in large telescopes in order to correct atmospheric distortion of light (called astronomical seeing).

  3. Starfire Optical Range - Wikipedia

    en.wikipedia.org/wiki/Starfire_Optical_Range

    Starfire Optical Range (SOR - Pronounced as an initialism) is a United States Air Force research laboratory on the Kirtland Air Force Base in Albuquerque, New Mexico.Its primary duty, according to the official website, is to "develop and demonstrate optical wavefront control technologies."

  4. Rangefinder - Wikipedia

    en.wikipedia.org/wiki/Rangefinder

    A laser rangefinder, also known as a laser telemeter, is a rangefinder that uses a laser beam to determine the distance to an object. The most common form of laser rangefinder operates on the time of flight principle by sending a laser pulse in a narrow beam towards the object and measuring the time taken by the pulse to be reflected off the ...

  5. Laser rangefinder - Wikipedia

    en.wikipedia.org/wiki/Laser_rangefinder

    A laser rangefinder, also known as a laser telemeter, is a rangefinder that uses a laser beam to determine the distance to an object. The most common form of laser rangefinder operates on the time of flight principle by sending a laser pulse in a narrow beam towards the object and measuring the time taken by the pulse to be reflected off the ...

  6. List of the United States Army fire control and sighting ...

    en.wikipedia.org/wiki/List_of_the_United_States...

    This is a list of United States Army fire control, and sighting material by supply catalog designation, or Standard Nomenclature List (SNL) group "F".The United States Army Ordnance Corps Supply Catalog used an alpha-numeric nomenclature system from about the mid-1920s to about 1958.

  7. Breakthrough Listen - Wikipedia

    en.wikipedia.org/wiki/Breakthrough_Listen

    The radio telescopes are sensitive enough to detect "Earth-leakage" levels of radio transmission from stars within 5 parsecs, [4] and can detect a transmitter of the same power as a common aircraft radar from the 1,000 nearest stars. [12] The Green Bank Telescope began operations in January 2016, and the Parkes Telescope from October 2016. [4]

  8. Seattle to raise fees for public pools and facilities to ...

    www.aol.com/news/seattle-raise-fees-public-pools...

    (The Center Square) – Seattle residents that utilize the city’s public pools, gyms and athletic centers will see fee increases next year to help offset salary increases. On Jan. 1, 2025 ...

  9. Laser - Wikipedia

    en.wikipedia.org/wiki/Laser

    A telescope in the Very Large Telescope system producing four orange laser guide stars. A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The word laser originated as an acronym for light amplification by stimulated emission of radiation.