http://stream.publicbroadcasting.net/production/mp3/wamc/local-wamc-758833.mp3
Albany, NY – Stephanie Kwolek (b.1923). She dreamed of becoming a fashion designer and later, a doctor. Stephanie didn't exactly do either, but the clothing she helped make saves lives. She is the chemist who invented Kevlar, the material used in bullet-proof vests.