Hot - cold. (1975)

The sun in the sky comes out from behind the clouds.

People on the street of the city in the heat.

A dog in a handkerchief from the heat.

People on the streets of summer Moscow.

People at the vending machines with sparkling water.

View of the high-altitude skating rink "Medeo" with artificial people, people skating, panorama of the artificial skating rink.

Students play hockey on an artificial ice rink.

Refrigeration equipment installed under the ice rink.

Types of refrigerator machine room.

Conducting a scientific experiment with two thermometers.

Temperature drop as the liquid evaporates.

The process of rapid evaporation of the liquid.

Adding freon to the liquid.

The operation of an aerosol can, the spraying of liquids with freon.

Extinguishing a fire with a freon fire extinguisher.

Boiling of freon in the refrigerator.

Installation that demonstrates the operation of the refrigerator.

Diagram of the refrigerator operation and freon circulation for obtaining cold (animation).

Details of the refrigerator.

Food is in the refrigerator.

Ice cubes obtained in the freezer of the refrigerator.

Ice production processes on an industrial scale.

The doors of the refrigerator in the food warehouse open.

Parts of refrigeration equipment.

Sausages in the cold room of the meat processing plant.

Unloading boxes of frozen fish from the hold of a refrigerated vessel.

The refrigerator ship "Vostok" at the pier.

Unloading of frozen fish on the shore.

Loading frozen food into a refrigerator truck.

The refrigerator truck is on its way.

Refrigeration equipment of the high-altitude skating rink "Medeo".

View of the skating rink.

Fans in the stands.

Mechanical cleaning of ice from snow.

Automatic line for filling ice cream cups, the faces of children and adults in the stands.

Automated process of making popsicles in chocolate.

A boy eats a popsicle.

Performance of a pair of skaters at the ice rink.