Mariner 9, the first spacecraft to successfully go into orbit around Mars launched on May 30, 1971, and arrived November 13, 1971 for a duration of 167 days. This is the same pattern that has held up for more almost 50 years of Mars exploration: approximately 150-300 days.
Enigma was invented by the German engineer Arthur Scherbius at the end of World War I. Early models were used commercially from the early 1920s, and adopted by military and government services of several countries, most notably Nazi Germany before and during World War II.
Bohnett said he purchased the Enigma machine in part because of his fascination with Turing's life. Like Turing, Bohnett has devoted his career to computer technology and is gay. As a young man, Bohnett helped to found the Internet site GeoCities, which he later sold to Yahoo.is Enigma machine, which is kept at his Beverly Hills office, was purchased 15 years ago at Sotheby's in London. The machine, for which Bohnett estimated he paid around 12,000 pounds ($18,000), is believed to have once been used on a German U-boat.