What is Radiator?
A '''radiator''' is a device used to move heat from one location to another location. Some radiators are used to cool things, such as a car [[Combustion engine|engine]]. Some radiators are used to heat things, such as a [[house]]. ==History== The Roman [[hypocaust]] is an early example of a type of radiator for building space heating. [[Franz San Galli]], a [[Prussia|Prussian-born]] [[Russia]]n businessman living in [[St. Petersburg]], is credited with inventing the heating radiator around 1855,<ref>{{cite web |url=http://www.gruner-fam.de/SanGalli-E.html |title=Family Sangalli / San Galli |publisher=Gruner-fam.de |access-date=2011-09-20}}</ref><ref>{{Cite web |archive-url=https://web.archive.org/web/20100207113505/http://www.votgk.com/press/energyhistory/sangalli/ |archive-date=2010-02-07 |url-status=dead |url=http://www.votgk.com/press/energyhistory/sangalli/ |title=The hot boxes of San Galli |language=ru }}</ref> having received a radiator patent in 1857, but American Joseph Nason developed a primitive radiator in 1841<ref>{{cite web|url=http://www.heatinghelp.com/files/articles/1257/234.pdf |title=Archived copy |access-date=2014-08-23 |url-status=dead |archive-url=https://web.archive.org/web/20140826115728/http://www.heatinghelp.com/files/articles/1257/234.pdf |archive-date=26 August 2014 |df=dmy }}</ref> and received a number of U.S. patents for hot water and steam heating.<ref>{{cite web|title=Radiator |url=https://srotas24.co.uk/}}</ref> == Cooling == [[File:Automobile radiator.jpg|thumb|left|A radiator used to cool a car.]] Most cars use a radiator to cool the engine. To produce power, engines must burn a [[fuel]]. This creates a lot of heat. If the heat is not removed, the engine will overheat and stop running. The radiator is connected to the engine with [[hose]]s. A [[liquid]] flows into the engine. Heat is moved from the engine to the liquid. The heat moves because of [[Newton's Law of Cooling]]. This law says that heat will move from something hot to something cooler. The liquid then moved into