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2. Optical disc drive - Wikipedia

   en.wikipedia.org/wiki/Optical_disc_drive

   The optical drives in the photos are shown right side up; the disc would sit on top of them. The laser and optical system scans the underside of the disc. With reference to the top photo, just to the right of image center is the disc motor, a metal cylinder, with a gray centering hub and black rubber drive ring on top.

3. Optical storage - Wikipedia

   en.wikipedia.org/wiki/Optical_storage

   This used a laser to warm the storage media so that it became susceptible to magnetic fields and an electromagnet, similar to the one in a hard drive, to write data by realigning the material within. It worked like a conventional optical drive during reads, with the laser operating at lower energy levels, too low to heat the disk.

4. Inkjet Vs. Laser Printers: Which Is Sharpest, Fastest, and ...

   www.aol.com/inkjet-vs-laser-printers-sharpest...

   Consumer Reports found that intermittent use—a few pages a few times per week—used more ink for routine maintenance than printing in larger batches. Laser printer toner won’t dry up between ...

5. List of laser types - Wikipedia

   en.wikipedia.org/wiki/List_of_laser_types

   Optical discs, laser pointers, data communications. 780 nm compact disc, 650 nm general DVD player and 635 nm DVD for Authoring recorder laser are the most common lasers type in the world. Solid-state laser pumping, machining, medical. InGaAsP: 1.0-2.1 μm Telecommunications, solid-state laser pumping, machining, medical.. lead salt 3-20 μm

6. Laser pointer - Wikipedia

   en.wikipedia.org/wiki/Laser_pointer

   The apparent brightness of a spot from a laser beam depends on the optical power of the laser, the reflectivity of the surface, and the chromatic response of the human eye. For the same optical power, green laser light will seem brighter than other colors, because the human eye is most sensitive at low light levels in the green region of the ...

7. NFL Christmas ratings: Netflix reports average of 24 million ...

   www.aol.com/sports/nfl-christmas-ratings-netflix...

   Netflix NFL Christmas Gameday was a record-breaking day, reaching 65 million US viewers according to Nielsen! With an average of more than 24 million people watching each game, Chiefs-Steelers and ...