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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.
As of the start of 1923, the Gregorian calendar was 13 days ahead of the Julian calendar, ... Stephanie Kwolek, American chemist noted for inventing Kevlar (d.
1966 – Stephanie Kwolek invented a fibre that would later become known as Kevlar; 1968 – Liquid crystal display developed by RCA; 1970 – Silica optical fibers grown by Corning Incorporated; 1980 – Duplex stainless steels developed which resist oxidation in chlorides
Stephanie Kwolek: American Chemist, known for the ivention of Kevlar (1960s). Linus Pauling: American Chemist, Researcher and Professor: (1950s) Frederic Sanger: British Chemist, known for progressies in Genetics (1950s). Joseph Simmons, American Chemist, inventor of Teflon (1950s).
In her first 100 days as mayor, Stephanie Terry is focused on her visibility in the community and building relationships.
June 18 is the 169th day of the year ... in the Gregorian calendar; 196 days remain until the end of the year ... 2014 – Stephanie Kwolek, American chemist ...