Witness

In 1965, a new fibre was discovered by Polish American scientist Stephanie Kwolek. It was called Kevlar and it was found to be five times stronger than steel. Since that discovery it’s been used to save thousands of lives through its use in bulletproof vests, but it’s also used in hundreds of other products from aeroplanes to protective clothing for motorcyclists. Stephanie was one of the only female scientists working for the chemical firm DuPont and was passionate about encouraging more women and girls into the field of chemistry. Tim O’Callaghan has uses archive of Stephanie Kwolek from 1996 to tell the story of her discovery. Eye-witness accounts brought to life by archive. Witness History is for those fascinated by the past. We take you to the events that have shaped our world through the eyes of the people who were there. For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more. Recent episodes explore e