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2. Troffer - Wikipedia

   en.wikipedia.org/wiki/Troffer

   A troffer is a rectangular light fixture that fits into a modular dropped ceiling grid (i.e. 2' by 2' or 2' by 4'). Troffer fixtures have typically been designed to accommodate standard fluorescent lamps (T12, T8, or T5), but are now often designed with integral LED sources. Troffers are typically recessed sitting above the ceiling grid, but ...

3. Luminescence - Wikipedia

   en.wikipedia.org/wiki/Luminescence

   Cryoluminescence, the emission of light when an object is cooled [6] (an example of this is wulfenite) Photoluminescence, a result of the absorption of photons Fluorescence, traditionally defined as the emission of light that ends immediately after the source of excitation is removed. As the definition does not fully describe the phenomenon ...

4. Electron-stimulated luminescence - Wikipedia

   en.wikipedia.org/wiki/Electron-stimulated...

   A cathodoluminescent light has a transparent glass envelope coated on the inside with a light-emitting phosphor layer. Electrons emitted from a cathode strike the phosphor; the current returns through a transparent conductive coating on the envelope. The phosphor layer emits light through the transparent face of the envelope.

5. Electroluminescence - Wikipedia

   en.wikipedia.org/wiki/Electroluminescence

   Views of a liquid crystal display, both with electroluminescent backlight switched on (top) and switched off (bottom). Electroluminescence (EL) is an optical and electrical phenomenon, in which a material emits light in response to the passage of an electric current or to a strong electric field.

6. Experts Reveal the Exact Time to Shower for Better Sleep - AOL

   www.aol.com/experts-reveal-exact-time-shower...

   Revamp your sleep space. Create a cave-like environment to obtain optimal sleep. Sleep experts recommend a cool temperature of about 65*F, pitch darkness (blackout curtains can help), and a sound ...

7. List of physics mnemonics - Wikipedia

   en.wikipedia.org/wiki/List_of_physics_mnemonics

   ROYGBIV (in reverse VIBGYOR) is commonly used to remember the order of colors in the visible light spectrum, as seen in a rainbow. Richard of York gave battle in vain" (red, orange, yellow, green, blue, indigo, violet). Additionally, the fictitious name Roy G. Biv can be used as well. (red, orange, yellow, green, blue, indigo, violet).

8. Andy Cohen Reveals the Most Annoying Part of Co-Hosting ... - AOL

   www.aol.com/lifestyle/andy-cohen-reveals-most...

   Andy Cohen is spilling the tea on what it's like working with longtime friend and colleague Anderson Cooper. Before SiriusXM's 10th Annual Radio Andy Holiday Hangout (which he co-hosts with Amy ...

9. How to watch the Quadrantids, one of the strongest meteor ...

   www.aol.com/watch-quadrantids-first-meteor...

   The Quadrantid meteor shower is one of the strongest, and quickest, meteor showers of the year. Here’s what you need to know to observe it during peak activity.