1942

By raleigh | July 15, 2026

Lady Joan Curran, the only female scientist at the TRE (Telecommunications Research Establishment), invented chaff under the codename “window.” It was widely used for the remainder of WWII, and it is still today a well-established countermeasure for radar. Listen to the History of Crows podcast episode dedicated to all women of EW – past, present, and future.