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The San Juanico disaster involved a series of fires and explosions at a liquefied petroleum gas (LPG) tank farm in the settlement of San Juan Ixhuatepec (popularly known as San Juanico), municipality of Tlalnepantla de Baz, State of Mexico, Mexico on 19 November 1984. [1] The facility and the settlement, part of Greater Mexico City, were ...
Chronology 1960s 1965. November 9—United States and Canada—The Northeast blackout of 1965 affected portions of seven northeastern U.S. states and Ontario.Most radio and television stations within the area lost power or lost teletype communications, so people within the blackout area relied on broadcasts from other areas to learn information about the blackout.
Chain reaction in chemistry and physics is a process that produces products capable of initiating subsequent processes of a similar nature. It is a self-sustaining sequence in which the resulting products continue to propagate further reactions. [1]
A possible nuclear fission chain reaction: 1) A uranium-235 atom absorbs a neutron and fissions into two fission fragments, releasing three new neutrons and a large amount of binding energy. 2) One of those neutrons is absorbed by an atom of uranium-238, and does not continue the reaction. Another neutron leaves the system without being absorbed.
The original design basis was a zero-point ground acceleration of 250 Gal and a static acceleration of 470 Gal,based on the 1952 Kern County earthquake (0.18 g, 1.4 m/s 2, 4.6 ft/s 2). [ citation needed ] After the 1978 Miyagi earthquake , when the ground acceleration reached 0.125 g (1.22 m/s 2 , 4.0 ft/s 2 ) for 30 seconds, no damage to the ...
Leó Szilárd (1898–1964), nuclear physicist, discoverer of the nuclear chain reaction; Robert Walser (1878–1956), Swiss modernist author; Wilhelm II, German Emperor (1859–1941) Woodrow Wilson (1856–1924), American president; Sterling North (1906–1974), American writer; See also. Deaths from the Spanish flu pandemic by country
Transfer to chain transfer agent. Chain transfer agents have at least one weak chemical bond, which therefore facilitates the chain transfer reaction. Common chain transfer agents include thiols, especially dodecyl mercaptan (DDM), and halocarbons such as carbon tetrachloride. Chain transfer agents are sometimes called modifiers or regulators.
In chemistry, initiation is a chemical reaction that triggers one or more secondary reactions. Initiation creates a reactive centre on a molecule which produces a chain reaction. [1] The reactive centre generated by initiation is usually a radical, but can also be cations or anions. [2] Once the reaction is initiated, the species goes through ...