Heatsinks and fans are used on CPUs to help cool them down so that they are not destroyed. A heatsink is a piece of metal placed on the CPU to distribute heat away from the CPU itself.
Generally, a washroom has a sink and toilet. A bathroom has a sink, toilet and tub. But the words are often used interchangeably.
a lavatory is strictly for hand-washing while a sink is considered miscellaneous and can be used for service, utility, kitchen and laundry basins.
Heat sink
A heat sink is designed to disperse and transfer heat coming from a processor to an outside medium, so that it does not overheat the actual processor chip. It is usually used in conjunction with a fan to cool the device it is installed on.
There is no such thing as the "purity of electrons". A heat sink is used to keep a device reasonably cold.
A heat-sink is needed to dissipate the wasted power without any undue temperature rise. The effectiveness of a heat sink is measured by the watts dissipated per degree of temperature rise.
The rectifier, actually any semiconductor, is heat sensitive. You must use a low wattage soldering iron and a heat sink, such as a pair of pliers clamped around the wire between the connection and the diode, to dissipate the heat. You must also make the connection as quickly as possible.
The main purpose of a heat sink is to dissipate excessive heat away from the device that it is attached to. Some small integrated circuit components are so physically small that an over excess of heat generated by themselves would destroy the device. The heat sink is placed on the IC to prevent this from happening.
in arc welding only heat is used to weld metal. but in resistance welding pressure will also be used along with heat.
isopropyl alcohol
Thermal compound is used to provide the maximum amount of surface area contact between a CPU and a heatsink by filling in microscopic gaps between them. It is not, contrary to popular belief, used to hold the processor in place.
A Fan sink is a Heat sink with a fixed FAN. Heat sink's are blocks of metal, primarily used are are copper, and aluminum, that draw heat from a source ( such as your Processor, or another heat producing chip set ) and spread it across its surface area to be air cooled. A Fan sink, combine's the heat drawing of it's sink with a dedicated fan blowing air into ore out from the heat sink below it. This will significantly improve the sinks cooling power. So a processor cooler is most likely a Fan sink, but some chips surrounding it may only have a heat sink. ( Southbridge controller is usually placed near your CPU and is fitted with a black block of metal that has a lot of blades on it )