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It was the first industrial Van de Graaff generator in the world, [9] and marked the beginning of nuclear research for civilian applications. [10] [11] Built in 1937, it was a 65-foot-tall (20 m) pear-shaped tower. [9] [12] It was essentially unused after World War II, and the main structure was laid on its side in 2015. [12]
A staple remover allows for the quick removal of a staple from a material without causing damage. The form of destapler described was invented by William G. Pankonin of Chicago, Illinois. A patent application for the same was filed on December 12, 1932, granted on March 3, 1936, and published on April 3, 1936, as a patent. [248] 1932 Radio ...
Ermal Cleon "Ernie" Fraze [1] (September 16, 1913 – October 26, 1989) was an American engineer who invented the pull-tab opener used in beverage cans. [ 1 ] Early life
Check out these 12 things made in Indiana.
Another common clue type is the "hidden clue" or "container", where the answer is hidden in the text of the clue itself. For example, "Made a dug-out, buried, and passed away (4)" is solved by DEAD. The answer is written in the clue: "maDE A Dug-out". "Buried" indicates that the answer is embedded within the clue.
The first electromagnetic generator, the Faraday disk, was invented in 1831 by British scientist Michael Faraday. Generators provide nearly all the power for electrical grids . In addition to electricity- and motion-based designs, photovoltaic and fuel cell powered generators use solar power and hydrogen-based fuels, respectively, to generate ...
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Clayton Mark (June 30, 1858 – July 7, 1936), one of the pioneer makers of steel pipe in the United States, was an industrialist in the Chicago area who founded the Mark Manufacturing Company in 1888, a firm for the fabrication and sale of water-well supplies and Clayton Mark and Company in 1900.