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Download QR code; Wikidata item; Print/export Download as PDF; ... Media in category "Non-free Christmas images" The following 17 files are in this category, out of ...
Website. www .wentworthpuzzles .com. The Wentworth Wooden Jigsaw Company (also known as Wentworth Wooden Puzzles) is a British maker of jigsaw puzzles with whimsically shaped pieces reflecting the theme of the image portrayed on the puzzle. It was founded in 1994 by Kevin Wentworth Preston and is based in the village of Pinkney near Malmesbury ...
Laser safety. Laser radiation safety is the safe design, use and implementation of lasers to minimize the risk of laser accidents, especially those involving eye injuries. Since even relatively small amounts of laser light can lead to permanent eye injuries, the sale and usage of lasers is typically subject to government regulations.
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Printable Christmas cards. Sending Christmas cards can be a fun Christmas activity, but it can also feel like a chore to pick the perfect card, decide what to write in a Christmas card, and make ...
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Laser cutting. Laser cutting is a technology that uses a laser to vaporize materials, resulting in a cut edge. While typically used for industrial manufacturing applications, it is now used by schools, small businesses, architecture, and hobbyists. Laser cutting works by directing the output of a high-power laser most commonly through optics.
To give another example, of a more powerful laser—the type that might be used in an outdoor laser show: a 6-watt green (532 nm) laser with a 1.1 milliradian beam divergence is an eye hazard to about 1,600 feet (490 meters), can cause flash blindness to about 8,200 feet (1.5 mi/2.5 km), causes veiling glare to about 36,800 feet (7 mi; 11 km ...
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