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  2. Blackout (fabric) - Wikipedia

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

    Blackout refers to a foam-backed, opaque fabric used to black out light. Blackout fabrics are most commonly found in hotel rooms as curtain linings or drapery fabrics, blocking much of the light that would otherwise enter through a window when the curtains are closed. For travelers, third shift workers, and parents of babies, blackout is an ...

  3. 17 blackout curtains that will help you get a good ... - AOL

    www.aol.com/news/17-blackout-curtains-help-good...

    Thankfully, blackout curtains are a simple solution to the problem. To achieve a dark room, he recommends using blackout curtainscurtains that block out light to help you sleep through the night.

  4. The 10 Best Blackout Curtains For Better Sleep - AOL

    www.aol.com/lifestyle/10-best-blackout-curtains...

    Textured linen, noise-absorbing cotton—these 10 blackout curtains deliver on their simple task of blocking light. These are the ones doing it best in 2024. The 10 Best Blackout Curtains For ...

  5. Blackout (wartime) - Wikipedia

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

    A blackout curtain used in Auckland, New Zealand during World War II. Lights can simply be turned off or light can sometimes be minimized by tarring the windows of large public structures. In World War II, a dark blackout curtain was used to keep the light inside. Tarring the windows can mean a semi-permanent blackout status.

  6. Scotopic vision - Wikipedia

    en.wikipedia.org/wiki/Scotopic_vision

    This is a red pigment seen at the back of the eye in animals that have a white background to their eye called Tapetum lucidum. The pigment is not noticeable under photopic and mesopic conditions. The principle that the wavelength sensitivity does not change during scotopic vision led to the ability to detect two functional cone classes in ...

  7. Blackout Curtains to Help Kids Catch Their Zzzzs - AOL

    www.aol.com/lifestyle/blackout-curtains-help...

    Just open them up to let natural light wake up your sleepyhead. If you have a baby or child who just won’t sleep through the night, rule No. 1 is making sure their environment is conducive to sleep.

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