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Whitechapel Streets. 1890s. Just after the time of the Ripper http://forums.pelicanparts.com/uploa...1729887991.jpg The new television set, 1949. http://forums.pelicanparts.com/uploa...1729887991.jpg http://forums.pelicanparts.com/uploa...1729887991.jpg http://forums.pelicanparts.com/uploa...1729887991.jpg Argonne National Laboratory physics research associate Caroline Herzenberg using the Electronic Measuring Machine¹ to analyze nuclear particle tracks on rolls of 35 mm film taken of the ten-inch bubble chamber² mounted inside a superconducting magnet³ at Argonne's 12.5 GeV⁴ Zero Gradient Synchrotron⁵ particle accelerator facility (1967). It was a highly customized piece of film scanning equipment, automatically plotting the selected tracks and digitizing the information for later computer analysis. During the first experimental run, 476,000 pictures were obtained in a 25 day period! http://forums.pelicanparts.com/uploa...1729887991.jpg The Bricklayer. Photo taken in Germany in 1928. Photo by August Sander. |
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http://forums.pelicanparts.com/uploa...1729966815.jpg
http://forums.pelicanparts.com/uploa...1729966815.jpg http://forums.pelicanparts.com/uploa...1729966815.jpg The image shows the Pratt & Whitney R-4360 Wasp Major, a turbo supercharged radial engine used in some of the most powerful piston-engine aircraft during the late World War II and post-war era. This air-cooled, 28-cylinder engine was known for its complexity and power, featuring a four-row radial configuration. It was used in aircraft like the Boeing B-50 Superfortress and the Hughes H-4 Hercules. The R-4360 represented the pinnacle of piston-engine technology before the widespread adoption of jet engines http://forums.pelicanparts.com/uploa...1729966815.jpg http://forums.pelicanparts.com/uploa...1729966815.jpg http://forums.pelicanparts.com/uploa...1729966815.jpg |
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