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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, 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.
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.
This is a timeline of the development of plastics, comprising key discoveries and developments in the production of ... Kevlar developed at DuPont by Stephanie Kwolek:
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
1965: Kevlar is invented by Stephanie Kwolek at DuPont. 1969: The NPL network followed by the ARPANET implement packet switching for data communication, [497] [498] drawing on the concepts and designs of Donald Davies, [499] [500] [501] and Paul Baran. [502] These are considered precursors to the modern Internet. [499] [502]
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1923 was a common year starting on Monday of the Gregorian calendar, the 1923rd year of the Common Era (CE) and Anno Domini (AD) designations, the 923rd year of the 2nd millennium, the 23rd year of the 20th century, and the 4th year of the 1920s decade.