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Nitrocellulose film on a light box, showing deterioration, from Library and Archives Canada collection. In 1855, the first human-made plastic, nitrocellulose (branded Parkesine, patented in 1862), was created by Alexander Parkes from cellulose treated with nitric acid and a solvent.
Orders from countries fighting World War I required determining charges for different European military rifle cartridges, and production volume supported research for improvements. Improved military rifle propellants included a longitudinal perforation converting each grain to a tube with a progressive burning interior surface allowing a more ...
Ammonium nitrate is first synthesized by Johann Rudolf Glauber; it wasn't used as an explosive until World War I. [4] 1745 William Watson shows that an electric spark can ignite gunpowder, demonstrating the first detonator. [5] 1845 Nitrocellulose is invented by Christian Schoenbein. [6] 1846: Nitroglycerin is invented by Ascanio Sobrero. It is ...
Cellulose is the raw material in the manufacture of nitrocellulose (cellulose nitrate) which is used in smokeless gunpowder. Pharmaceuticals: Cellulose derivatives, such as microcrystalline cellulose (MCC), have the advantages of retaining water, being a stabilizer and thickening agent, and in reinforcement of drug tablets. [73]
In 1884, Paul Vieille invented a smokeless powder called Poudre B (short for poudre blanche, white powder, as distinguished from black powder) [7]: 289–292 made from 68.2% insoluble nitrocellulose, 29.8% soluble nitrocellulose gelatinized with ether and 2% paraffin. This was adopted for the Lebel rifle chambered in 8×50mmR Lebel.
Peacock's new documentary series, 'SNL50: Beyond Saturday Night' is now streaming. Here's a list of the show's cast members and featured celebrities.
Celluloids are a class of materials produced by mixing nitrocellulose and camphor, often with added dyes and other agents.Once much more common for its use as photographic film before the advent of safer methods, celluloid's common present-day uses are for manufacturing table tennis balls, musical instruments, combs, office equipment, fountain pen bodies, and guitar picks.
What a stand-alone TikTok U.S. might look like. Then Motley Fool co-Founder David Gardner and host Ricky Mulvey talk about the stock market in 2025 and how to keep the short-term noise out of the ...