Film entitled 'Joan Curran, physicist, born Swansea'. Joan Elizabeth Curran was born in Swansea on the Twenty Sixth of February 1916, the daughter of an optician, Charles William Strothers, and his wife, Margaret Beatrice, née Millington. She was a physicist who played important roles in the development of radar and the atomic bomb during the Second World War. Joan invented chaff, a radar countermeasure technique credited with reducing losses among Allied bomber crews. She also worked on the development of the proximity fuse and the electromagnetic isotope separation process for the atomic bomb. Length: 00:08:20