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Thomas Midgley Jr. (May 18, 1889 – November 2, 1944) was an American mechanical and chemical engineer.He played a major role in developing leaded gasoline (tetraethyl lead) and some of the first chlorofluorocarbons (CFCs), better known in the United States by the brand name Freon; both products were later banned from common use due to their harmful impact on human health and the environment.
Founded in 1923, [4] [5] Ethyl Corp was formed by General Motors and Standard Oil of New Jersey ().General Motors had the "use patent" for tetraethyllead (TEL) as an antiknock fuel additive, based on the work of Thomas Midgley Jr., Charles Kettering, and later Charles Allen Thomas, [6]: 340–41 and Esso had the patent for the manufacture of TEL.
Engine knock is caused by a cool flame, an oscillating low-temperature combustion reaction that occurs before the proper, hot ignition. Lead quenches the pyrolysed radicals and thus kills the radical chain reaction that would sustain a cool flame, preventing it from disturbing the smooth ignition of the hot flame front.
An antiknock agent is a gasoline additive used to reduce engine knocking and increase the fuel's octane rating by raising the temperature and pressure at which auto-ignition occurs.
After Taylor’s killing, the Omaha PD made changes to its no-knock warrant policies, requiring such warrants to get the approval of a captain or deputy chief, as well as be served by a SWAT team ...
Thomas Midgley may refer to: Thomas Midgley (footballer) (1856–1957), English footballer; Thomas Midgley Jr. (1889–1944), American chemist
December 14, 1940 - A tank farm fire I Texas City killed one person, and injured 18 others. [156] May 16, 1952 - A massive tank farm fire hit a Corpus Christi terminal. [155] April 11, 1965 - A gas well blew out in Parker County, causing a massive fire. Firefighter Red Adair had to be called in to control the well, which was capped on April 17 ...
Thomas Midgley Jr. 2 November 1944: In 1940, the 51-year-old contracted polio, which left him severely disabled, leading him to devise an elaborate system of ropes and pulleys to lift himself out of bed. In 1944, he became entangled in the device and died of strangulation. [289] [290] Louis Slotin: 30 May 1946