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  2. Ring Nebula - Wikipedia

    en.wikipedia.org/wiki/Ring_Nebula

    The Ring Nebula (also catalogued as Messier 57, M57 and NGC 6720) is a planetary nebula in the northern constellation of Lyra. [4] C] Such a nebula is formed when a star, during the last stages of its evolution before becoming a white dwarf , expels a vast luminous envelope of ionized gas into the surrounding interstellar space .

  3. Splayed opening - Wikipedia

    en.wikipedia.org/wiki/Splayed_opening

    Splayed arch tops the splayed window opening. In architecture, a splayed opening is a wall opening that is narrower on one side of the wall and wider on another. When used for a splayed window, it allows more light to enter the room. In fortifications, a splayed opening is used to broaden the arc of fire (cf. embrasure, loophole). [1]

  4. Aperture - Wikipedia

    en.wikipedia.org/wiki/Aperture

    The specifications for a given lens typically include the maximum and minimum aperture (opening) sizes, for example, f /0.95 – f /22. In this case, f /0.95 is currently the maximum aperture (the widest opening on a full-frame format for practical use [8]), and f /22 is the minimum aperture (the smallest opening). The maximum aperture tends to ...

  5. PGT Innovations Acquires Anlin Windows & Doors For $126M - AOL

    www.aol.com/pgt-innovations-acquires-anlin...

    PGT Innovations paid approximately 8.5x pre-synergie The Clovis, California-based Anlin, a brand for vinyl windows and doors in the remodel and replacement market, will operate under the Western ...

  6. Twin-lead - Wikipedia

    en.wikipedia.org/wiki/Twin-lead

    Nominal 450 Ω "window line". The opening cut between the wires is one of the "windows". Window line is a bulkier variety of parallel wire line than twin lead ribbon cable; it is similarly built to a wider size, except that the polyethylene ribbon between them holding the wires apart has regularly spaced rectangular openings ("windows") cut in it.

  7. Ring gauge - Wikipedia

    en.wikipedia.org/wiki/Ring_gauge

    Go gauges consist of a fixed limit gauge with a gauging limit based on the plus or minus tolerances of the inspected part. A go ring gauge's dimensions are based on the maximum OD tolerance of the round bar or part being gauged. A go plug gauge's dimensions are based on the minimum ID tolerance of the hole or part being gauged.

  8. College Football Playoff: Ranking the potential upsets in the ...

    www.aol.com/ranking-potential-upsets-college...

    3. #9 Tennessee at #8 Ohio State Line: Ohio State -7.5. The potential: Speaking of more to lose … Ryan Day might just be coaching for his job in these playoffs. Fortunately for him, the team he ...

  9. American Airlines flight diverts to JFK after apparent bird ...

    www.aol.com/american-airlines-flight-diverts-jfk...

    An American Airlines flight departing New York's LaGuardia Airport on Thursday evening had to divert to nearby John F. Kennedy International shortly after takeoff after a reported bird strike ...