well if you mean in the asthenosphere convection...the melty goo in there gets hot so it rises then get cold so it cools, you can see this affect in a boiling pan of water. :)
Conduction is the process that transfers thermal energy from the heating element to the bread in a toaster. The heating element gets hot and transfers heat directly to the bread through physical contact, causing the bread to toast.
A heat pump efficiently provides both heating and cooling for a home by transferring heat from one place to another. In the winter, it extracts heat from the outside air and transfers it inside to warm the home. In the summer, it removes heat from inside the home and releases it outside to cool the indoor space. This process of heat transfer allows the heat pump to provide both heating and cooling effectively.
Convection
The action of purifying a liquid by a process of heating and cooling.
The purpose of a condensation pipe in a heating or cooling system is to remove excess water that forms during the process of heating or cooling, preventing water damage and maintaining the efficiency of the system.
plasma
Igneous rocks are formed through the process of heating and cooling beneath the earth's surface. This process involves molten rock (magma) cooling and solidifying to create igneous rocks such as granite or basalt.
An annealer is a device or process which anneals - hardens by the process of greatly heating an object before cooling it slowly to render it less brittle.
liquid cooling
It helps because the process of heating is crucial in rocks.
The process of Convection / subduction current
Quenching , or quench hardeningis the process of rapidly cooling hot metal in a cold liquid. Its a process in which iron alloys and steel are hardened. This is done by heating the material to a certain temperature, and then cooling it rapidly in a cold liquid, usually water.