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2. Liquid-crystal display - Wikipedia

   en.wikipedia.org/wiki/Liquid-crystal_display

   After a page is written to the display, the display may be cut from the power while retaining readable images. This has the advantage that such ebooks may be operated for long periods of time powered by only a small battery. High-resolution color displays, such as modern LCD computer monitors and televisions, use an active-matrix structure.

3. Aroma lamp - Wikipedia

   en.wikipedia.org/wiki/Aroma_lamp

   Aroma lamp with essential oil. A heat diffuser contains a small candle under a bowl to vaporize a mixture of water and oil. This device is very cheap and doesn't need a special maintenance, however, the heat can change the chemical structure of the oils.

4. Diffuser - Wikipedia

   en.wikipedia.org/wiki/Diffuser

   Diffuser (hair), a blowdryer attachment that diffuses heat as it dries the hair; Diffuser (heat), a cooking item that is placed above a heating element to separate the cooking utensil from the heat source; Diffuser (optics), a device that spreads out or scatters light; Diffuser (sewage), an aerating device for sewage and industrial waste water ...

5. Lithium–air battery - Wikipedia

   en.wikipedia.org/wiki/Lithium–air_battery

   The aqueous–aprotic or mixed Li–air battery design attempts to unite advantages of the aprotic and aqueous battery designs. The common feature of hybrid designs is a two-part (one part aqueous and one part aprotic) electrolyte connected by a lithium-conducting membrane .

6. Fine bubble diffusers - Wikipedia

   en.wikipedia.org/wiki/Fine_bubble_diffusers

   Fine bubble diffusers have largely replaced coarse bubble diffusers and mechanical aerators in most of the developed world and in much of the developing world. The exception would be in secondary treatment phases, such as activated sludge processing tanks, where 85 to 90 percent of any remaining solid materials (floating on the surface) are ...

7. Diffuser (optics) - Wikipedia

   en.wikipedia.org/wiki/Diffuser_(optics)

   In optics, a diffuser (also called a light diffuser or optical diffuser) is any material that diffuses or scatters light in some manner to transmit soft light.Diffused light can be easily obtained by reflecting light from a white surface, while more compact diffusers may use translucent material, including ground glass, teflon, opal glass, and greyed glass.