Kevlar – the bulletproof material
A chemist Stephanie Kwolek invented technology which helped to make Kevlar – a heat-resistant, strong but at the same time light fiber well known for being used in bullet-proof vests.
Kwolek started working in the research laboratory DuPont in the 1960s when there were very few women there. For fifteen years before she came up with her invention, she was an ordinary employee. Her invention brought billions to the company. However, Kwolek herself didn’t receive any profit.
She retired and stopped working for DuPont in 1986, after that she taught chemistry to students.
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