Stephanie Kwolek, Chemist Who Invented Kevlar, Has Died

Stephanie Kwolek, the chemist who invented the incredibly tough fiber known as Kevlar, died yesterday at the age of 90. She was definitely a "true pioneer for women in science," as DuPont CEO Ellen Kullman noted, and her contributions to engineering and life-saving technology will ensure her memory lives on. »6/21/14 10:44am6/21/14 10:44am