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Carl Donald Keith (May 29, 1920 – November 9, 2008) was a chemist who was inventor of the three-way catalytic converter, which has played a dramatic role in reducing pollution from motor vehicles since their introduction in the mid-1970s.
A three-way catalytic converter on a gasoline-powered 1996 Dodge Ram Simulation of flow inside a catalytic converter. A catalytic converter is an exhaust emission control device which converts toxic gases and pollutants in exhaust gas from an internal combustion engine into less-toxic pollutants by catalyzing a redox reaction.
Carl D. Keith and John J. Mooney (right) at the award ceremony for the National Medal of Technology and Innovation for the invention, application and commercialization of the three-way catalytic converter (2003) Mooney was elected a Fellow of Society of Automotive Engineers (SAE) in 1990 for his efforts in exhaust emission control.
A number of contemporary novelists echoed this critical praise, including Nell Zink [14] and Francine Prose. [15] The Irish novelist Colm Tóibín described Book of Numbers as, "A hugely ambitious novel set in the high-tech world of now. It is a verbal high-wire act, daring in its tones and textures: clever, poetic, fast-moving, deeply playful ...
Robert Deane Pharr (1916–1989 [1] or 1992 [2]) was an African-American novelist. [3] [4]Pharr attended Saint Paul's Normal and Industrial School, Lincoln University, Virginia Union University and Fisk University, [2] but spent most of his career working as a waiter. [1]
The Book of Numbers (from Greek Ἀριθμοί, Arithmoi, lit. ' numbers ' Biblical Hebrew : בְּמִדְבַּר , Bəmīḏbar , lit. ' In [the] desert ' ; Latin : Liber Numeri ) is the fourth book of the Hebrew Bible and the fourth of five books of the Jewish Torah . [ 1 ]
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Catalytic-converter-equipped vehicles have helped cut other air pollutants by more than 3 billion tons worldwide between 1975 and 2000; of this 1.5 billion short tons was in the United States. Automobiles meet emission standards that required reductions of up to 98+ percent for HC, 96 percent for CO, and 95 percent for NOx compared to the ...
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