Modern refrigerators keep cool using a refrigeration cycle that involves a refrigerant. The cycle begins with the refrigerant absorbing heat from the fridge's interior, evaporating into a gas. This gas is then compressed, raising its temperature and pressure, before it passes through coils on the back or bottom of the fridge, where it releases the heat and cools down, turning back into a liquid. This process continuously repeats, maintaining a cool temperature inside the fridge.
yes
Cos it does
perishables.
Chill, cool ,separate, wash.
Magnetism and friction
they put them in a jar in a cool, underground celler
No, modern fridges do not use freon as a refrigerant. They now use more environmentally friendly refrigerants such as HFCs or HFOs.
Eskimos use fridges for the same reason others use them - to keep food cold. They heat the inside of their homes as we do and a fridge keeps the food cold. Fridges do NOT stop food freezing. they remove heat from the items within them and radiate that heat outside the fridge using the radiator at the back. they only remove heat, to stop something freezing you would have to introduce heat.
if you keep them safe then yes
Waeco produce compact fridges and cool boxes which are easily transportable. They are aimed at campers, those driving long haul vehicles and motorhomes, as they require little power.
in ancient time the people use ice and snow to preserve the food. Then they think about a machine to cool the food . this leads to the invention of refrigerator.
It is not recommended that you purchase a normal refrigerator for your RV. The cooling system in both fridges are not the same. RV fridges need gas to power them up. They are also made to keep cool longer when they are not being powered.