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Parkesine, the first member of the Celluloid class of compounds and considered the first man-made plastic, is patented by Alexander Parkes. [4] 1869: John Wesley Hyatt discovers a method to simplify the production of celluloid, making industrial production possible. 1872: PVC was accidentally synthesized in 1872 by German chemist Eugen Baumann ...
Jewelry wire is wire, usually copper, brass, nickel, aluminium, silver, or gold, used in jewelry making. Wire is defined today as a single, usually cylindrical, elongated strand of drawn metal . However, when wire was first invented over 2,000 years BC, it was made from gold nuggets pounded into flat sheets, which were then cut into strips.
More recently, aluminium yarns, aluminized plastic yarns, and aluminized nylon yarns have replaced gold and silver. Today's metal fiber industry mainly offers fibers in stainless steel, nickel, titanium, copper and aluminium for various applications. [2] Metallic filaments can be coated with transparent films to minimize tarnishing.
Copper wire can be hammered quite thin. Brass wire is a little stiffer than copper, but it can be manipulated very easily. Sterling silver is soft enough to manipulate, but holds its shape well once it has been formed. Gold-filled wire is made by fusing a layer of 12-or 14-karat gold to a supporting material. Silver-filled wire is made in the ...
Lace made from copper wire was widely used in Elizabethan era theatre costuming as a substitute for more expensive gold and silver laces. [5] [6] It was a major import, with several tons of copper thread being imported into England between 1594 and 1596, and at the turn of the 16th and 17th centuries, cost between 9 and 16 pennies an ounce. [6]
Except for a few early ones, submarine cables were armoured with iron, then later steel, wires. [2] The Gutta Percha Company made only the insulated cores, not the complete cable, until April 1864 when it merged into the Telegraph Construction and Maintenance Company , which was later acquired by British Insulated Callender's Cables in 1959.
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The retro appeal of old Bakelite products has made them collectible. [4] The creation of a synthetic plastic was revolutionary for the chemical industry, which at the time made most of its income from cloth dyes and explosives. Bakelite's commercial success inspired the industry to develop other synthetic plastics.