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Cellulose acetate is also known as "safety" film and started to replace nitrate film in still photography in the 1920s. [1] There are several types of acetate that were produced after 1925, which include diacetate (c. 1923 – c. 1955), acetate propionate (1927 – c. 1949), acetate butyrate (1936–present), and triacetate (c. 1950 – present). [1]
In 1953 Buckminster Fuller used Mylar as a skin for a geodesic dome, which he built with students at the University of Oregon. [8] In 1955 Eastman Kodak used Mylar as a support for photographic film and called it "ESTAR Base". [9] The very thin and tough film allowed 6,000-foot (1,800 m) reels to be exposed on long-range U-2 reconnaissance ...
Nitrocellulose is guncotton, the first replacement propellant for gun powder in firearms. A can of decomposing nitrate film. Film stock with a nitrate base was the first transparent flexible plasticized base commercially available, thanks to celluloid developments by John Carbutt, Hannibal Goodwin, and Eastman Kodak in the 1880s. Eastman was ...
The stock's increased sensitivity to red light made it an attractive option for day for night shooting. Kodak financed a feature in 1922, shot entirely with panchromatic stock, The Headless Horseman, to promote the film when Kodak introduced it as a standard option. Panchromatic film stock increased costs and no motion pictures were produced on ...
E. I. DuPont de Nemours in Delaware, United States, first produced Dacron (PET fiber) in 1950 and used the trademark Mylar (boPET film) in June 1951 and received registration of it in 1952. [27] [28] It is still the best-known name used for polyester film. The current owner of the trademark is DuPont Teijin Films. [29]
A space blanket (also known as a Mylar blanket, emergency blanket, first aid blanket, safety blanket, thermal blanket, weather blanket, heat sheet, foil blanket, or shock blanket) is an especially low-weight, low-bulk blanket made of heat-reflective thin plastic sheeting. They are used on the exterior surfaces of spacecraft for thermal control ...
Stock pot is a generic name for one of the most common [citation needed] types of cooking pot used worldwide. A stock pot is traditionally used to make stock or broth, which can be the basis for cooking more complex recipes. It is a wide pot with a flat bottom, straight sides, a wide opening to the full diameter of the pot, two handles on the ...
Stock removal is the process of removing material (stock) from a workpiece. Stock removal processes include: [1] Machining; Milling; Turning; Drilling; Grinding; Filing; Broaching; Shaping; Planing; Sawing; Stock removal processes all fall under the umbrella of subtractive manufacturing, a more general term.
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