Alan Turing's Top Secret DIY Project

Alan Turing's secret 'Delilah' project from 1943-1945 resulted in a groundbreaking portable voice-encryption system, demonstrating his largely unknown expertise in electrical engineering. Recently discovered documents, known as the 'Bayley papers,' reveal Turing's detailed work on this innovative system that could encrypt and decrypt speech using pseudorandom number generation and advanced circuit design. The project showcased Turing's transition from theoretical mathematics to practical engineering, laying groundwork for his later contributions to computer design.