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  2. Light tube - Wikipedia

    en.wikipedia.org/wiki/Light_tube

    Light tubes (also known as solar pipes, tubular skylights or sun tunnels [1]) ... such products may have lower installation costs but do consume energy during use; ...

  3. List of New York City Subway yards - Wikipedia

    en.wikipedia.org/wiki/List_of_New_York_City...

    The work was projected to cost $6,387,000 and be completed in 1950. ... multi-paned windows and a massive sawtooth skylight. ... as part of the installation of CBTC ...

  4. Skylight - Wikipedia

    en.wikipedia.org/wiki/Skylight

    A retractable skylight rolls (on a set of tracks) off the frame, so that the interior of the facility is entirely open to the outdoors, i.e., not impeded by a hinged skylight. The terms retractable skylight and retractable roof are often used interchangeably, though skylight implies a degree of transparency. Tubular daylight device

  5. Roof window - Wikipedia

    en.wikipedia.org/wiki/Roof_window

    A roof window is different from a tubular skylight in that the light is not directed through any type of channel or tube in order to provide lighting for the interior of a building. This type of light tube design is often employed with buildings where the installation of a skylight or roof window is not practical. [1]

  6. Poly(methyl methacrylate) - Wikipedia

    en.wikipedia.org/wiki/Poly(methyl_methacrylate)

    Laser cut acrylic panels have been used to redirect sunlight into a light pipe or tubular skylight and, from there, to spread it into a room. [33] Their developers Veronica Garcia Hansen, Ken Yeang, and Ian Edmonds were awarded the Far East Economic Review Innovation Award in bronze for this technology in 2003. [34] [35]

  7. Window - Wikipedia

    en.wikipedia.org/wiki/Window

    A window is an opening in a wall, door, roof, or vehicle that allows the exchange of light and may also allow the passage of sound and sometimes air.Modern windows are usually glazed or covered in some other transparent or translucent material, a sash set in a frame [1] in the opening; the sash and frame are also referred to as a window. [2]

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