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2. Perfect mirror - Wikipedia

   en.wikipedia.org/wiki/Perfect_mirror

   A very complex dielectric mirror can reflect up to 99.999% of the light incident upon it, for a narrow range of wavelengths and angles. A simpler mirror may reflect 99.9% of the light, but may cover a broader range of wavelengths. Almost any dielectric material can act as a perfect mirror through total internal reflection.

3. Mirror - Wikipedia

   en.wikipedia.org/wiki/Mirror

   A mirror reflecting the image of a vase A first-surface mirror coated with aluminium and enhanced with dielectric coatings. The angle of the incident light (represented by both the light in the mirror and the shadow behind it) exactly matches the angle of reflection (the reflected light shining on the table). 4.5-metre (15 ft)-tall acoustic mirror near Kilnsea Grange, East Yorkshire, UK, from ...

4. Light-emitting diode - Wikipedia

   en.wikipedia.org/wiki/Light-emitting_diode

   The flat bottom surfaces of the anvil and post embedded inside the epoxy act as anchors, to prevent the conductors from being forcefully pulled out via mechanical strain or vibration. A light-emitting diode (LED) is a semiconductor device that emits light when current flows through it. Electrons in the semiconductor recombine with electron ...

5. The best early Labor Day sales, from Amazon to Zappos - AOL

   www.aol.com/lifestyle/the-best-early-labor-day...

   Retailers from Amazon to Zappos are offering markdowns for Labor Day to help you get your bedroom, kitchen, beauty cabinet, closet and garden sorted ahead of autumn. At Tuft & Needle's Labor Day ...

6. A complete guide to the very best Labor Day sales on ... - AOL

   www.aol.com/lifestyle/the-very-best-labor-day...

   The Best Labor Day Sales this year includes great deals such as a $65 mattress, a $20 set of sheets and 20% off Amazon bestselling pillows. Browse all of the deals available this Labor Day.

7. Parabolic aluminized reflector - Wikipedia

   en.wikipedia.org/wiki/Parabolic_aluminized_reflector

   A parabolic aluminized reflector lamp (PAR lamp or simply PAR) is a type of electric lamp that is widely used in commercial, residential, and transportation illumination. It produces a highly directional beam. Usage includes theatrical lighting, locomotive headlamps, aircraft landing lights, and residential and commercial recessed lights ("cans ...