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@roxa
Stephanie Louise Kwolek, a chemist and inventor, was born in America. This chemist invented a very light material called Kevlar, which is 5 times stronger and lighter than steel, and is used in the manufacture of products such as bulletproof vests, kitchen gloves, mobile phones, airplane parts and suspension bridges.
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@erihanarcisa
Kevlar, a synthetic fiber first developed by Kwolek in the 1960s, is renowned for its exceptional strength-to-weight ratio. It is about five times stronger than steel by weight and has a variety of applications due to its remarkable properties.
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