Liquid cooling no relation Computing
Liquid cooling refers to cooling by means of the convection or circulation of a liquid. 
Examples of liquid cooling technologies include:Cooling by convection or circulation of coolant, including water cooling
Liquid cooling and ventilation garments, worn by astronauts
Liquid metal cooled reactors
Radiators (engine cooling)
Cooling towersApplications
Computing
In computing and electronics, liquid cooling involves the technology that uses a special water block to conduct heat away from the processor as well as the chipset. This method can also be used in combination with other traditional cooling methods such as those that use air. The application to microelectronics is either indirect or direct. The former pertains to the category that utilizes cold plate cooling, which uses water as coolant while, in the latter (also referred to as liquid immersion cooling), the surface of the chips comes in contact with the liquid since there is no wall separating the heat source from the coolant. This immersion cooling also offer a higher transfer coefficient, although this depends on the specific coolant used and mode of convective heat transfer. 
One of the main benefits achieved is the reduction of noise and it is also more efficient. Some of the drawbacks include the risk entailed with the close proximity of liquid to electronics as well as its cost. Liquid cooling systems are more expensive than fan sets, which require less components such as reservoir, pump, water blocks, hose, and radiator.
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