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Elastic material used in the fabrics of a summer cycling attire comprising a jersey, bib shorts and gloves. Spandex, Lycra, or elastane is a synthetic fiber known for its exceptional elasticity. It is a polyether - polyurea copolymer that was invented in 1958 by chemist Joseph Shivers at DuPont. [ 1 ][ 2 ][ 3 ]
Joseph Shivers. Joseph Clois Shivers Jr. (November 29, 1920 – September 1, 2014) was an American textile chemist who was based in West Chester, Pennsylvania, best known for his role in the structural development of Spandex, a thermoplastic elastomer, in the 1950s, while employed at DuPont. [1]
List of Generation Z slang. Appearance. "If You Know You Know" redirects here. For the Pusha T song, see If You Know You Know (song). The following is a list of slang that is used or popularized by Generation Z (Gen Z), generally those born between the late 1990s and early 2010s in the Western world.
The concept of Discord came from Jason Citron, who had founded OpenFeint, a social gaming platform for mobile games, [ 13 ] and Stanislav Vishnevskiy, who had founded Guildwork, another social gaming platform. Citron sold OpenFeint to GREE in 2011 for US$104 million, [ 14 ] which he used to found Hammer & Chisel, a game development studio, in ...
Decade Description 1970s–1980s The PLATO system (developed at the University of Illinois and subsequently commercially marketed by Control Data Corporation) offers early forms of social media with Notes, PLATO's message-forum application; TERM-talk, its instant-messaging feature; Talkomatic, perhaps the first online chat room; News Report, a crowd-sourced online newspaper, and blog; and ...
Polyurea is a type of elastomer that is derived from the reaction product of an isocyanate component and an amine component. The isocyanate can be aromatic or aliphatic in nature. It can be monomer, polymer, or any variant reaction of isocyanates, quasi-prepolymer or a prepolymer. The prepolymer, or quasi-prepolymer, can be made of an amine ...
History of display technology. Appearance. Electrically operated display devices have developed from electromechanical systems for display of text, up to all-electronic devices capable of full-motion 3D color graphic displays. Electromagnetic devices, using a solenoid coil to control a visible flag or flap, were the earliest type, and were used ...
A leotard(/ˈliːətɑːrd/) is a unisex skin-tightone-piece garmentthat covers the torso from the crotchto the shoulder. The garment was made famous by the French acrobaticperformer Jules Léotard(1838–1870). There are sleeveless, short-sleeved, and long-sleeved leotards. A variation is the unitard, which also covers the legs.