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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.
CFC logo. The Canadian Film Centre (CFC) is a charitable organization founded in 1988 by filmmaker Norman Jewison in Toronto, Ontario, Canada.Originally launched as a film school, today it provides training, development and advancement opportunities for professionals in the Canadian film, television and digital media industries, including directors, producers, screenwriters, actors and musicians.
Chlorofluorocarbons ( CFCs) and hydrochlorofluorocarbons ( HCFCs) are fully or partly halogenated hydrocarbons that contain carbon (C), hydrogen (H), chlorine (Cl), and fluorine (F), produced as volatile derivatives of methane, ethane, and propane . The most common example is dichlorodifluoromethane (R-12). R-12 is also commonly called Freon ...
Retrospective video on the Montreal Protocol and the collaboration between policy-makers, scientists, and industry leaders to regulate CFCs. The Montreal Protocol on Substances That Deplete the Ozone Layer is an international treaty designed to protect the ozone layer by phasing out the production of numerous substances that are responsible for ...
Dichlorodifluoromethane (R-12 or CFC-12), the most commonly used Freon brand refrigerant prior to its ban in many countries in 1996 and total ban in 2010. 1,1,1,2-Tetrafluoroethane (R-134a or HFC-134a), one of the main replacements for the formerly widespread R-12. Opteon halogenated olefins now replacing Freons in many applications.
English. Box office. $744,165 [1] C.S.A.: The Confederate States of America is a 2004 American mockumentary film written and directed by Kevin Willmott . It is an account of an alternate history, wherein the Confederacy wins the American Civil War and establishes a new Confederate States of America that incorporates the majority of the Western ...
42. Music videos. 1. Theatre. 1. Donald Sutherland 's career spanned over 60 years. He was nominated for eight Golden Globe Awards, winning two for his performances in the television films Citizen X (1995) [ 1] and Path to War (2002); [ 2] the former also earned him a Primetime Emmy Award. [ 3] An inductee of the Hollywood Walk of Fame [ 4] and ...
CFC-113a is the only known CFC whose abundance in the atmosphere is still growing. Its source remains a mystery, but illegal manufacturing is suspected by some. CFC-113a seems to have been accumulating unabated since 1960. Between 2012 and 2017, concentrations of the gas jumped by 40 percent. [40]