A water cooler is a machine that dispenses drinking water, especially in an office. Standing around the water cooler at work, the subject of football comes up. 2. singular noun. Water cooler is used in expressions that refer to the informal conversations that people have in their office or workplace.The cooled gas in the water pipe is forced through a valve to make it even colder. When the refrigerant is in a gas form and is circulating in the pipes, it has the ability to absorb the heat away from the mineral water in the reservoir, leaving cool and refreshing water that is readily available.Haws' father died from typhoid fever after drinking contaminated water, so after patenting that first water faucet, Haws set out to find a solution. It turns out the answer was water coolers! As the dispenser chilled the water, it would eliminate micro-organisms that could cause disease such as typhoid fever.Invariably steel body coolers are more efficient than the plastic body coolers as they are fitted with comparatively bigger cooling pads. People sometimes prefer plastic body desert coolers for their better looks and zero possibility of rusting.Custom water cooling loops offer the best cooling performance, hands down. Not only do they handle higher temperatures than AIOs and air coolers, but they can be necessary for overclocking powerful, high-end CPUs.An air cooler works on the principle of evaporative cooling wherein evaporation of water is used to cool the air. A simple example of evaporative cooling is sweating in humans. As sweat starts to evaporate, it extracts the extra heat absorbed in it from the skin in the form of gas thus resulting in a cooling effect.A cooler, portable ice chest, ice box, cool box, chilly bin (in New Zealand), or esky (Australia) is an insulated box used to keep food or drink cool.