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  2. Blackout (fabric) - Wikipedia

    en.wikipedia.org/wiki/Blackout_(fabric)

    The process of manufacturing blackout was invented by Baltimore-based Rockland Industries, [2] and involves coating a fabric with layers of foam, or 'passes'. A '2-pass' blackout is produced by applying two passes of foam to a fabric – first, a black layer is applied to the fabric, then a white or light-colored layer is applied on top of the black.

  3. Window blind - Wikipedia

    en.wikipedia.org/wiki/Window_blind

    Various window blind styles. A window blind is a type of window covering. [1] There are many different kinds of window blinds which use a variety of control systems. A typical window blind is made up of several long horizontal or vertical slats of various types of hard material, including wood, plastic or metal which are held together by cords that run through the blind slats.

  4. Smart glass - Wikipedia

    en.wikipedia.org/wiki/Smart_glass

    Some smart windows can self-adapt to heat or cool for energy conservation in buildings. [5] [6] [7] Smart windows can eliminate the need for blinds, shades or window treatments. [8] Some effects can be obtained by laminating smart film or switchable film onto flat surfaces using glass, acrylic or polycarbonate laminates. [9]

  5. Greyout - Wikipedia

    en.wikipedia.org/wiki/Greyout

    A greyout can be readily reversed by lying down as the cardiovascular system does not need to work against gravity for blood to reach the brain. A greyout may be experienced by aircraft pilots pulling high positive g-forces as when pulling up into a loop or a tight turn, which forces blood to the lower extremities of the body and lowers blood ...

  6. Rolling blackout - Wikipedia

    en.wikipedia.org/wiki/Rolling_blackout

    A room during load shedding at night in West Bengal, India. A rolling blackout, also referred to as rota or rotational load shedding, rota disconnection, feeder rotation, or a rotating outage, is an intentionally engineered electrical power shutdown in which electricity delivery is stopped for non-overlapping periods of time over different parts of the distribution region.

  7. Blackout (Britney Spears album) - Wikipedia

    en.wikipedia.org/wiki/Blackout_(Britney_Spears...

    Blackout is the fifth studio album by American singer Britney Spears.It was released on October 25, 2007, by Jive Records.Its production and release occurred as Spears' personal struggles were highly publicized and overshadowed her professional projects.