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Laser engraving metal plates are manufactured with a finely polished metal, coated with an enamel paint made to be "burned off". At levels of 10 to 30 watts, excellent engravings are made as the enamel is removed quite cleanly. Much laser engraving is sold as exposed brass or silver-coated steel lettering on a black or dark-enamelled background.
"21:9" ("twenty-one by nine" or "twenty-one to nine") is a consumer electronics (CE) marketing term to describe the ultrawide aspect ratio of 64:27 (2. 370:1 or 21. 3:9), designed to show films recorded in CinemaScope and equivalent modern anamorphic formats.
youtube-dl -F <url> The video can be downloaded by selecting the format code from the list or typing the format manually: youtube-dl -f <format/code> <url> The best quality video can be downloaded with the -f best option. Also, the quality of the audio and video streams can be specified separately and merged with the + operator. [35]
In Europe, Philips also used the "CD Video" name as part of a short-lived attempt in the late 1980s to relaunch and rebrand the entire LaserDisc system. [46] [30] Some 20 and 30 cm discs were also branded "CD Video", but unlike the 12 cm discs, these were essentially just standard LaserDiscs with digital soundtracks and no audio-only CD content ...
Other terms often used for printed engravings are copper engraving, copper-plate engraving or line engraving. Steel engraving is the same technique, on steel or steel-faced plates, and was mostly used for banknotes, illustrations for books, magazines and reproductive prints, letterheads and similar uses from about 1790 to the early 20th century, when the technique became less popular, except ...
Wood engraving is a printmaking technique, in which an artist works an image into a block of wood. Functionally a variety of woodcut , it uses relief printing , where the artist applies ink to the face of the block and prints using relatively low pressure.