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Stephanie Louise Kwolek (/ ˈkwoʊlɛk /; 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. [1][2] For her discovery, Kwolek was awarded the DuPont company's Lavoisier Medal for outstanding technical ...
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.
Stephanie Kwolek, the inventor of Kevlar, graduated from Margaret Morrison Carnegie College in 1946 with a B.S. in General Science (Chemistry). [3] Newbery Medal winning-author E. L. Konigsburg is a 1952 graduate of Margaret Morrison Carnegie College. [7]
Children. Norma and Albert Jr. Marie Van Brittan Brown (October 30, 1922 – February 2, 1999) was an American nurse, her husband Albert L. Brown, an electronics technician. In 1966 they invented an audio-visual home security system [1][2] That same year they applied for a patent for their security system. It was granted three years later in 1969.
A former Playboy model killed herself and her 7-year-old son after jumping from a hotel in Midtown New York City on Friday morning. The New York Post reports that 47-year-old Stephanie Adams ...
Valerie L. Thomas (born February 8, 1943) is an American data scientist and inventor. She invented the illusion transmitter, for which she received a patent in 1980. [2] She was responsible for developing the digital media formats that image processing systems used in the early years of NASA 's Landsat program. [3]
Some Nigerians have turned to social media platforms like Tiktok as a way to cope with stress. Some find support in communities wherever they can, from the church or mosque to the gym. And now ...
Anna Connelly was an American woman who lived from the mid-19th century to the mid-20th century in Pennsylvania. She was the inventor of the predecessor of the modern outdoor fire escape; her invention saved lives, causing it to become a safety component in modern buildings. In addition, she was one of the first women in the US to submit a ...