In 1965, a Polish-American woman chemist made an unexpected discovery and created a compound five times stronger than steel helping in saving lives through bulletproof vests, spacecrafts and helmetsIn 1965, a chemist expected a routine polymer solution and got a bizarre cloudy liquid instead: It became KevlarIn 1965, a strange, cloudy solution in Stephanie Kwolek’s lab lead to the invention of KevlarIn 2004, scientists found a way to detect hidden rail flaws without stopping trains
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