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Heat
Form of kinetic energy that flows from one body to another when there is a temperature difference between the two bodies. Heat always flows spontaneously from a hot sample of matter to a colder sample of matter. This is one way to state the second law of thermodynamics. See temperature. (source: EPA) Background from Wikipedia For other uses, see Heat (disambiguation). In physics, heat, symbolized by Q, is defined as energy in transit.[1] Generally, heat is a form of energy transfer associated with the different motions of atoms, molecules and other particles that comprise matter when it is hot and when it is cold. High temperature bodies, which often result in high heat transfer, can be created by chemical reactions (such as burning), nuclear reactions (such as fusion taking place inside the Sun), electromagnetic dissipation (as in electric stoves), or mechanical dissipation (such as friction). Heat can be transferred between objects by radiation, conduction and convection. Temperature, defined as the measure of an object to spontaneously give up energy, is used as a measure of the internal energy or enthalpy, that is the level of elementary motion giving rise to heat transfer. Heat can only be transferred between objects, or areas within an object, with different temperatures (as given by the zeroth law of thermodynamics, and then, in the absence of work, only in the direction of the colder body (as per the second law of thermodynamics). The photosphere of the sun is quite hot at 5800 kelvins and radiates immense amounts of visible and infrared electromagnetic radiation (blackbody radiation).Chicago Sun-Times,Alleys also create "heat islands," places that absorb heat, and increase city temperatures. About four years ago, the Chicago Department of Transportation Heat on Airtel, Vodafone as game changes - 22 Oct 2007 Hindustan Times,Incumbent GSM giants such as Bharti Airtel and Vodafone are set to feel the heat of competition from mighty Reliance and Tata group in a scenario that could Surinder Sud: Ready to take the heat - 22 Oct 2007 Business Standard,The ICAR appears to be ready to face global warming and has got together universities to collaborate on critical research. As more and more evidence of Malibu celebrities feel the heat - 22 Oct 2007 BBC News,A large wildfire is raging in the Californian Pacific town of Malibu, causing devastation and threatening the homes of several wealthy celebrities. Bombing takes heat off cash gift scandal - 22 Oct 2007 Inquirer.net,Whatever the cause of the blast and who are responsible, the obvious immediate impact is that it has taken the heat off the President over the cash › First industrial CO 2 heat pump by Itomic - 22 Oct 2007 R744.com,Itomic’s leading heat pumps offer high efficiency, reliability, and safety, as well as low running costs. Itomic's CO 2 water heater produces large volumes Near-record heat threatens area - 22 Oct 2007 Charlotte Sun-Herald,It cautions residents not to over-exert in today's like-August heat. "Sweltering conditions for this time of year will return this afternoon," it warns. Heat exhaustion cases at new low - 22 Oct 2007 ArabianBusiness.com,...by ArabianBusiness.com staff writer on Monday, 22 October 2007 For the first time, Rashid has closed its annual heat registry due to the drop in cases. Social Circle police take heat from residents - 22 Oct 2007 Walton Tribune,By Stephen Milligan SOCIAL CIRCLE — Although the Social Circle Department of Public Safety is less than 3 years old, some in the city are less than pleased Workshop displays heat-set oils - 22 Oct 2007 Greenwood Index Journal,...“Two artists developed these heat synthetic oils about 25 years ago,� Cam Marchi, an Abbeville artist who has worked with the materials for 10 years, said, Heat on LA Schools to Fix Payroll Errors Still Riling Teachers - 22 Oct 2007 Education Week News,By Andrew Trotter The Los Angeles school district is still under fire for its difficulties in paying teachers accurately, after thousands of teachers were Elections Heat Up - 22 Oct 2007 Broadside,This November, voters all across Virginia will select their representatives for the Virginia House of Delegates. This year is an important year, Fresh chef Ashley wins heat - 22 Oct 2007 Northwich Guardian,Ironically 17-year-old Liverpool fan Ashley Salmon won the Manchester heat of the competition at Old Trafford. He cooked Seared Seabass, Apricot-Stuffed Sweatin’ the Mediterranean Heat - 22 Oct 2007 RealClimateThis heat combined with aridity is estimated to have cost Turkish farmers ~$3.9 billion. Turkey’s wheat crop dropped by about 15%. The Turkish Aegean region Derby heat caught our players cold admits Gord - 22 Oct 2007 Glasgow Evening Times,...by Thomas Jordan GORDON STRACHAN watched most of his players lose their personal battles against Rangers as, for the third time of asking, he failed to put Some like it hot, hot, hot! - 22 Oct 2007 Guardian Unlimited,Heat the oil in a heavy-based saucepan. Add the chervil, garlic, ginger, chillis and peppers. Fry gently over medium heat for 2 minutes then add the More heat than light - 22 Oct 2007 Irish Independent,Junior Minister Dick Roche's disclosure that he would be "incandescent with rage" were he in the Transport Minister's shoes may have been inspired his own Spray candy packs some heat - 22 Oct 2007 Trading Markets (press release),ALLENTOWN, Pa., Oct 22, 2007 (The Morning Call (Allentown - McClatchy-Tribune News Service via COMTEX) -- SYCP | charts | news | PowerRating -- If you like Furnace and heat treatment monitoring systems - 22 Oct 2007 Processing Talk,The latest Roxspur Measurement and Control Newsletter traces the history of the Brearley involvement with furnaces and heat treatment monitoring systems, District 204 teachers get rewarded for beating heat - 22 Oct 2007 Chicago Daily Herald,Superintendent Stephen Daeschner said staff handled the heat well and deserved a reward for the inconvenience. "It wasn't that much," he said. The Final Fantasy Heat Report: 10.21.07 - 22 Oct 2007 411mania.com,Welcome back to another edition of the Final Fantasy Heat report! After a brief two week hiatus, I have returned! During this time away it seems like I have Hoops hopefuls feel heat at tryout - 22 Oct 2007 Kusports,By Jason Elmquist The pressure was on Sunday night as 16 Kansas University men’s basketball walk-on candidates tried to impress three former Jayhawks Hydrogen economy could fuel nuclear renaissance - 22 Oct 2007 Toronto Star,Instead of using nuclear power directly for electrolysis, they plan to use the waste heat from a nearby nuclear plant to extract hydrogen from steam. Reader comments: Packing heat, no apologies - 22 Oct 2007 Deseret News,There are no comments for this story. You can be the first to comment on this story. Comments are monitored. Any comments found to be abusive, offensive, Packing heat, no apologies - 22 Oct 2007 Deseret News,By Elizabeth Stuart PROVO — For Clachelle Jensen, preparing to leave the house with her two children goes something like this: Baby wipes? Check. Minister feels the heat of climate diplomacy - 22 Oct 2007 China Internet Information Center|,For those who think diplomacy is all about dressing well and rubbing shoulders with stars, they should try having Zheng Guoguang's job. Top 50 Website Rankings for Sept. Issued; Retail, Religion ... - 22 Oct 2007 Marketing Vox NewsYahoo Sites remained the top US web property as Wikipedia Sites and New York Times Digital moved up within the top 10 sites, while retail, political, Chili chefs from around the area bring the heat: Enthusiasts break ... - 22 Oct 2007 Carroll County Times (subscription),By Kathryn Leiter, Times Staff Writer “I like the way you had an immediate infusion of flavor,� she said of the winning recipe. Coming in second place was Smother shrimp with spicy sauce - 22 Oct 2007 Toronto Star,This can be tricky to cook unless you keep fiddling with the heat on your particular stove: too high and the stuff stuck to the bottom of the pan burns; Iraq turns up heat on Kurdish rebels - 22 Oct 2007 Gulf News,AP & Reuters Arbil, Iraq: Iraq's president, a Kurd, ordered Kurdish guerrillas yesterday to lay down their arms or leave Iraq after the rebels ambushed a City Breaks Heat Record On Summer-Like October Day - 22 Oct 2007 CityNews,It's been a warmer than usual fall in general, with a few cool days breaking up what's otherwise been a steady stream of heat and humidity. Scoring hotter as heat rises - 22 Oct 2007 The Wimmera Mail Times,By DEAN LAWSON LUBECK-MURTOA hitched a ride on the bat of joint captain Graeme Reddie in a bounce-back performance against Colts in Horsham A Grade cricket. Shield dream over for Comets - 22 Oct 2007 Times & Star,And, ultimately it was his absence that proved too much of a handicap for the Comets against a Redcar side whose heat leader trio scored all but ten of Cardiff homes break new ground - 22 Oct 2007 News Wales,Each of the nine properties in Hendre Road, Trowbridge, has a ground source heat pump heating system. This replaces the traditional gas fired boiler or The heat or eat dilemma - Oct 21, 2007 Boston Globe,A new report by the Children's Sentinel Nutrition Assessment Program demonstrates that this "heat or eat dilemma" was depressingly familiar to America's Electricity demand up as first big heat sets in - Oct 21, 2007 The Age,DEMAND on the state's electricity supply jumped 15 per cent as Victorians turned on air-conditioners to escape yesterday's sweltering heat. Garth Tander thrives in intense heat on Gold Coast - Oct 21, 2007 Melbourne Herald Sun,THE pressure of the most intense title fight in V8 Supercar history took its toll at Surfers Paradise yesterday. All four title contenders -- Jamie Whincup, Tired SA hockey girls feel the heat - Oct 21, 2007 Independent Online,By Nazli Thomas The Australian women's hockey team swept to a 2-1 series victory over South Africa in the final match of the SPAR Challenge series at the Turning up the heat - Oct 20, 2007 Jakarta Post,The sauce for their typical satay tambulinas (usually made of pork) could send someone not used to heat frantically gulping down a jug of water. Grizzlies keep Heat winless in preseason - Oct 20, 2007 HoopsWorldMEMPHIS, Tennessee (Ticker) -- Rudy Gay scored 22 points to lead the Memphis Grizzlies to a 104-98 preseason victory over the Miami Heat on Saturday night. Southeast preview: Are Heat on ice? - Oct 20, 2007 FOXSports.comHow long can Jason Williams maintain his health? If he goes down (again), the mushy game of Smush Parker will certainly limit the Heat's horizons. Heat on for solar race contenders - Oct 20, 2007 ABC Online,Thiry-eight solar powered cars are preparing for the start of the World Solar Challenge in the Northern Territory. The contingent will leave Darwin at Renault wilts in Interlagos heat - Oct 20, 2007 ITV.com,Renault blamed the rise in track temperatures for its poor qualifying performance at Interlagos, where neither driver made it into the top-10 shootout. Golf-Schwartzel shrugs off stiff neck to turn up heat on Vancsik - Oct 20, 2007 Reuters.uk,By Norman Dabell VILAMOURA, Portugal, Oct 20 (Reuters) - South African Charl Schwartzel almost pulled out of the Portugal Masters third round through injury Heat rises on interest rates - Oct 20, 2007 The Age,THE prospect of rising interest rates will dominate week two of the election campaign, with inflation figures on Wednesday expected to show the economy Disconnected heat ducts may cause that gas smell - Oct 20, 2007 Seattle Times,When the furnace comes on, the fan depressurizes the building, as one or more of the heat ducts is partly disconnected in the crawlspace, attic or elsewhere Heat's on Indyfest organisers to produce a crowd-pulling format - Oct 21, 2007 Gold Coast News,INDYFEST organisers will have to rethink next year's event after fewer than 3000 fans turned up on Saturday night. Scorching temperatures and traffic issues Hornets beat Heat at Coliseum - Oct 20, 2007 SunHerald.com,By JAMES JONES Jackson was up to his old tricks as the Hornets beat the Miami Heat 92-85 in an NBA preseason game Friday night before an announced crowd of Home-Heat Prices Are Flaring Up - Oct 19, 2007 Washington Post,By Steven Mufson For the nearly 8 million US homeowners who use oil for heat during the winter, distant political tensions and financial speculation on Hardaway joins the B-team in Heat loss - Oct 20, 2007 Rotoworld.comOnce Antoine Walker and, eventually, Dwayne Wade return for the Heat, there will be no role left for Penny to fill. Oct. 20 - 11:46 pm et. News index | RSS | News Feed Advertisements: Organic Apparel from Patagonia | Insect-repelling clothing |
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