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Stephanie Louise Kwolek (/ ˈ k w oʊ l ɛ k /; July 31, 1923 – June 18, 2014) was a Polish-American chemist best known for inventing Kevlar (poly-paraphenylene terephthalamide). Her career at the DuPont company spanned more than 40 years.
Stephanie Kwolek, inventor of Kevlar Ignacy Łukasiewicz built world's first oil refinery. Marian Rejewski, Jerzy Różycki, and Henryk Zygalski, Polish mathematician–cryptologists, broke German Enigma-machine ciphers before and during World War II. Sharing their techniques with the British, they enabled British reading of Enigma messages.
Stephanie Kwolek, American chemist of Polish origin, who in 1965 created the first of a family of synthetic fibers of exceptional strength and stiffness. The best-known member is Kevlar , a material used in protective vests as well as in boats, airplanes, ropes, cables, and much more—in total about 200 applications.
Kevlar (para-aramid) [2] is a strong, heat-resistant synthetic fiber, related to other aramids such as Nomex and Technora.Developed by Stephanie Kwolek at DuPont in 1965, [3] [2] [4] the high-strength material was first used commercially in the early 1970s as a replacement for steel in racing tires.
Kwolek is a Polish surname. Notable people with the surname include: Bartosz Kwolek (born 1997), Polish volleyball player; Stephanie Kwolek (1923–2014), American chemist; Charles Peter Kwolek III (born 1990), Polish DIII ATHLETE AKA KING RACKS
Marie Curie (1867–1934), pioneering research into radioactivity. Women inventors have been historically rare in some geographic regions. For example, in the UK, only 33 of 4090 patents (less than 1%) issued between 1617 and 1816 named a female inventor. [1]
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A powerful para-aramid synthetic fiber, developed by Stephanie Kwolek at DuPont in 1965 Polonium and radium The discoveries of elements radium and polonium were made by Polish chemist Marie Curie through the deep study of their nature and their compounds .