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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.
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]
This is a timeline of the development of ... Year Event Reference 1600 BCE: Mesoamericans used natural rubber for ... Kevlar developed at DuPont by Stephanie Kwolek:
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.
The Taliban march into Kabul as internationally backed President Ashraf Ghani flees the country. Aug. 26, 2021 — Islamic State group suicide bombers and gunmen kill over 170 Afghans and 13 U.S ...
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 Kiser, a former nanny for ultrarich families, shares stories in a new memoir, "Wanted: Toddler's Personal Assistant."