Solar hot water — is water heated by the use of solar energy. Solar heating systems are generally composed of solar thermal collectors, a fluid system to move the heat from the collector to its point of usage. The system may use electricity for pumping the fluid,… … Wikipedia
Water heating — is a thermodynamic process using an energy source to heat water above its initial temperature. Typical domestic uses of hot water are for cooking, cleaning, bathing, and space heating. In industry, both hot water and water heated to steam have… … Wikipedia
Hot dry rock geothermal energy — (HDR) is a type of geothermal power production that uses the very high temperatures (approx 200 Celsius) that can be found in rocks a few kilometers below ground. Electricity is generated by pumping high pressure water down a borehole (injection… … Wikipedia
Hot tub — dablink|This article is about the pool. For the Seinfeld epidsode see The Hot Tub for the Drawn Together episode see Hot Tub (Drawn Together episode)A hot tub is a large home made or manufactured tub or small pool full of heated water and used… … Wikipedia
Water meter — A typical residential water meter A water meter is a device used to measure the volume of water usage. This article provides an overview of technical aspects of water meters. The worldwide prevalence of metering as well as its economic benefits… … Wikipedia
Hot Wheels — is a brand of die cast toy car, introduced by American toymaker Mattel in 1968. It was the primary competitor of Johnny Lightning and Matchbox until 1996, when Mattel acquired rights to the Matchbox brand from Tyco. The original, and now famous,… … Wikipedia
Water fight — Water warfare redirects here. For armed conflict over water resources, see water war. A water fight is a type of mock combat using various water dispensing devices to soak opponents. Everything from buckets to balloons to water guns and even… … Wikipedia
Water — This article is about general aspects of water. For a detailed discussion of its properties, see Properties of water. For other uses, see Water (disambiguation) … Wikipedia
Water cooling — Cooling tower and water discharge of a nuclear power plant Water cooling is a method of heat removal from components and industrial equipment. As opposed to air cooling, water is used as the heat conductor. Water cooling is commonly used for… … Wikipedia
Hot and high — In aviation, hot and high refers to very warm climates or very high elevations that may compromise an aircraft s ability to operate safely.Air density decreases with increasing temperature and altitude. Lower air density reduces the amount of… … Wikipedia
