Amazing video gives a 'unique' look inside an Enigma cipher machine

A fascinating new video gives a unique look inside the Enigma cipher machine used by the Nazis during World War Two and famously cracked by a team of code breakers led by British mathematician Alan Turing. Scientists used state-of-the-art X-ray scans to peer inside the Enigma's metal casing, revealing the wiring and rotors that encrypted the messages sent using the machine. In total, more than 1,500 scans were taken of an Enigma machine built in Berlin in 1941 - one of just 274 known to have survived the war. Enigmas, which resembled large typewriters, were used by German air, naval and army forces to safely send messages throughout the Second World War. It used a complex series of rotors and lights to encrypt messages by swapping letters around via an ever-changing'enigma code'.