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  2. Coincidence rangefinder - Wikipedia

    en.wikipedia.org/wiki/Coincidence_rangefinder

    Eyepiece image of a naval rangefinder, showing the displaced image when not yet adjusted for range. The coincidence rangefinder uses a single eyepiece. Light from the target enters the rangefinder through two windows located at either end of the instrument. At either side the incident beam is reflected to the center of the optical bar by a ...

  3. Weaver rail mount - Wikipedia

    en.wikipedia.org/wiki/Weaver_rail_mount

    The locking bar system allows for even stress to be distributed and prevent canting of the scope mount. Another form of scope canting is caused by the rings themselves. Many Weaver-type mounts, including many Picatinny-type scope rings and even the Redfield Type, have either two or four screws on top of the scope ring that hold the scope in place.

  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. Stadiametric rangefinding - Wikipedia

    en.wikipedia.org/wiki/Stadiametric_rangefinding

    Stadiametric rangefinding, or the stadia method, is a technique of measuring distances with a telescopic instrument.The term stadia comes from a Greek unit of length Stadion (equal to 600 Greek feet, pous) which was the typical length of a sports stadium of the time.

  6. Barr and Stroud - Wikipedia

    en.wikipedia.org/wiki/Barr_and_Stroud

    The war years saw the development of other products, including a torpedo depth recorder, a periscope rangefinder, fire-control systems and a dome sight for aircraft. During World War I there was a problem with the supply of binoculars to the armed forces and apart from the British makers, binoculars were bought in from various sources.

  7. The dark fandom behind healthcare CEO murder suspect - AOL

    www.aol.com/dark-fandom-behind-healthcare-ceo...

    They came in hoodies, they came in masks, shuffling their feet and laughing nervously while waiting for a winner to be announced. Just a few days after UnitedHealthcare CEO Brian Thompson was ...

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