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Herbert E. Grier
Herbert Earl Grier (July 3, 1911 — March 17, 1999) was an American electrical engineer. While starting his engineering career with MIT during the 1930s to 1940s, Grier co-invented a miniature stroboscope and handheld Flash (photography), flash with Harold Edgerton and Kenneth Germeshausen. During World War II, Grier built a firing mechanism during the Manhattan Project that was used in the Fat Man bomb. After he, Edgerton and Germeshausen created EG&G in 1947, Grier was involved in several nuclear tests including Operation Sandstone and Operation Ranger. With EG&G, Grier was president until 1976 and served as a consultant from 1983 to 1994. Apart from electrical engineering, he took part in NASA safety boards that assessed Skylab and the preparation of the first Space Shuttle. Grier was awarded the NASA Distinguished Service Medal in 1985 and the National Medal of Science in 1989. Early life and education Grier was born on July 3, 1911, in Chicago, Illinois. At the age of el ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operation Plumbbob
Operation Plumbbob was a series of nuclear tests that were conducted between May 28 and October 7, 1957, at the Nevada Test Site, following '' Project 57'', and preceding '' Project 58/58A''. Background The operation consisted of 29 explosions, of which only two did not produce any nuclear yield. Twenty-one laboratories and government agencies were involved. While most ''Operation Plumbbob'' tests contributed to the development of warheads for intercontinental and intermediate range missiles, they also tested air defense and anti-submarine warheads with smaller yields. They included forty-three military effects tests on civil and military structures, radiation and bio-medical studies, and aircraft structural tests. ''Operation Plumbbob'' had the tallest tower tests to date in the U.S. nuclear testing program as well as high-altitude balloon tests. One nuclear test involved the largest troop maneuver ever associated with U.S. nuclear testing. Approximately 18,000 members o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |