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Some practical uses for concave and convex mirrors are in medical instruments, car mirrors, and telescopes.
randomness
The basic idea behind a refrigerator is very simple: It uses the evaporation of a liquid to absorb heat.
Solar
Peltier Effect
A device that uses evaporative cooling cools air through the evaporation of water. The evaporation of water enables a very quick transfer of heat, enabling many applications.
yes
The CFC's are used in almost all refrigerants. They provide cooling effect.
what are the practical uses of bec
If your AC uses water in the cooling process it will. If it is a straight air cooled AC then it will not have any effect.
The level of the lake is lowered due to evaporation.
Ununtrium has not practical uses.
Any practical uses.
Hassium has not practical uses.
Hassium has not practical uses.
Ununseptium hasn't practical uses.
Perspiration is moisture on the skin which evaporates. Evaporation sends the atoms of perspiration into the air. It takes energy (heat) to do this, so as the heat leaves the skin, the skin becomes cooler.