Wikipedia:Main Page history/2016 October 30

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Jack Parsons in 1941

Jack Parsons (1914–1952) was an American rocket engineer and rocket propulsion researcher, chemist, and Thelemite occultist. Associated with the California Institute of Technology (Caltech), Parsons was one of the principal founders of both the Jet Propulsion Laboratory (JPL) and the Aerojet Engineering Corporation. He invented the first rocket engine using a castable composite rocket propellant, and helped develop both liquid-fuel and solid-fuel rockets. Inspired by science fiction literature, he developed an interest in rocketry in his childhood and in 1928 began amateur rocket experiments with school friend Ed Forman. In 1934 he united with Forman and graduate student Frank Malina to form the Caltech-affiliated GALCIT Rocket Research Group, supported by Guggenheim Aeronautical Laboratory chairman Theodore von Kármán. After working on Jet-Assisted Take Off for the U.S. military, the GALCIT Group became JPL in 1943. For his contributions to rocket engineering, his advocacy of space exploration and human spaceflight, and his role in the founding of JPL and Aerojet, Parsons is regarded as one of the most important early figures of the U.S. space program. (Full article...)

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Talking Gravestone in the cemetery of Süderende, Föhr
Talking Gravestone of Föhr

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October 30: Diwali (Hinduism, Sikhism and Jainism, 2016); Mischief Night in some areas of the United States

Henry VII of England
Henry VII of England
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"Precious Metal"

"Precious Metal", a custom built, highly modified variant of the North American P-51 Mustang, racing in the Unlimited Gold Final Heat at the 2014 Reno Air Races. This aircraft runs a Rolls-Royce Griffon engine originally produced for the British Spitfire, and features coaxial contra-rotating propellers.

Photograph: Don Ramey Logan

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