Template:Selected anniversaries/March 4: Difference between revisions

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||1967: Michel Plancherel dies ... mathematician. He worked in the areas of mathematical analysis, mathematical physics and algebra, and is known for the Plancherel theorem in harmonic analysis. Pic.
||1967: Michel Plancherel dies ... mathematician. He worked in the areas of mathematical analysis, mathematical physics and algebra, and is known for the Plancherel theorem in harmonic analysis. Pic.


||1970: French submarine Eurydice explodes underwater, resulting in the loss of the entire 57-man crew.
||1970: French submarine ''Eurydice'' explodes underwater, resulting in the loss of the entire 57-man crew.


||1976: Walter H. Schottky dies ... physicist and engineer.
||1976: Walter H. Schottky dies ... physicist and engineer. Pic.


||1977: The first Freon-cooled Cray-1 supercomputer, costing $19,000,000 , was shipped to Los Alamos Laboratories, NM, and was used to help the defense industry create sophisticated weapons systems. This system had a peak performance of 133 megaflops and used the newest technology, integrated circuits and vector register technology. The Cray-1 looked like no other computer before or since. It was a cylindrical machine 7 feet tall and 9 feet in diameter, weighed 30 tons and required its own electrical substation to provide it with power (an electric bill around $35,000/month). The inventor, Seymour Cray, died 5 Oct 1996 in an auto accident. His innovations included vector register technology, cooling technologies, and magnetic amplifiers.  
||1977: The first Freon-cooled Cray-1 supercomputer, costing $19,000,000 , was shipped to Los Alamos Laboratories, NM, and was used to help the defense industry create sophisticated weapons systems. This system had a peak performance of 133 megaflops and used the newest technology, integrated circuits and vector register technology. The Cray-1 looked like no other computer before or since. It was a cylindrical machine 7 feet tall and 9 feet in diameter, weighed 30 tons and required its own electrical substation to provide it with power (an electric bill around $35,000/month). The inventor, Seymour Cray, died 5 Oct 1996 in an auto accident. His innovations included vector register technology, cooling technologies, and magnetic amplifiers.  

Revision as of 09:59, 12 March 2019