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  2. Best Buy’s Trade-In Program Will Give You Gift Cards in ...

    www.aol.com/best-buy-trade-program-gift...

    According to the Best Buy website, an iPad Pro 12.9-inch (3 rd generation) is worth $325. Not all models are eligible for trade-ins. As with other electronics, the condition, documentation and ...

  3. 5 best and worst deals at Best Buy - AOL

    www.aol.com/article/2016/03/16/5-best-and-worst...

    Best Buy's slogan is: "Expert service. Unbeatable price." In fact, the electronics chain with more than 1,400 stores claims that it "offers expert service at an unbeatable price more than 1.5 ...

  4. Bell & Howell - Wikipedia

    en.wikipedia.org/wiki/Bell_&_Howell

    The Kinodrome 35-mm projector mechanism, introduced in 1907, steadied projected images and reduced the flicker that can occur during motion-picture projection. [4] The 35-mm perforator, introduced in 1910, set the standard throughout the industry as to the expected distance and width of the sprocket holes running on each side of the 35-mm film ...

  5. Overhead projector - Wikipedia

    en.wikipedia.org/wiki/Overhead_projector

    An overhead projector works on the same principle as a slide projector, in which a focusing lens projects light from an illuminated slide onto a projection screen where a real image is formed. However some differences are necessitated by the much larger size of the transparencies used (generally the size of a printed page), and the requirement ...

  6. Projector - Wikipedia

    en.wikipedia.org/wiki/Projector

    Acer projector, 2012 DLP type home theatre projector in use. A projector or image projector is an optical device that projects an image (or moving images) onto a surface, commonly a projection screen. Most projectors create an image by shining a light through a small transparent lens, but some newer types of projectors can project the image ...

  7. Polylux (overhead projector) - Wikipedia

    en.wikipedia.org/wiki/Polylux_(overhead_projector)

    The Polylux was an overhead projector produced in the German Democratic Republic (GDR). It also functioned as a generic name for overhead projectors in the GDR. The Polylux was produced in the VEB ( Volkseigener Betrieb : people’s enterprise) Phylatex-Physikgeräte DDR, in Frankenberg near Chemnitz (then known as Karl-Marx-Stadt ).