In life, from time to time it becomes necessary to keep the object cold for some time. Generally speaking, from the point of view of physics, the phrase "keep the cold" is not entirely correct. Cold is just the absence of warmth, as, say, darkness is the absence of light. Thus, our task is to prevent the object from heating up. This can be done in several ways.
Instructions
Step 1
The simplest and most affordable home remedy is to place the item in the refrigerator. There it is guaranteed not to heat up.
Step 2
If you don't have a refrigerator at hand, you can put the item in a tub filled with cold tap water or place it in front of the air conditioner set to the minimum setting.
Step 3
If there is no air conditioner or bathtub, a regular fan will help. Wrap the object in a wet cloth and direct a stream of air at it. When it evaporates, the water cools the surface it is on. So you can chill, say, bottled drinks. The main thing is to make sure that the fabric does not dry out, otherwise the heating process will start again.
Step 4
A small, cold item can be placed in a thermos. There he will keep his temperature for several hours.
Step 5
In nature, you can use special hypothermic bags. They are in any car first aid kit. Each package usually has an instruction sheet that explains how to use it.
Step 6
If there is nothing cooling at all at hand, a cold object can be at least tightly wrapped with any heat insulator: a fur coat, a cotton blanket, a warm jacket. They will create some semblance of a microclimate by limiting the access of warm air. It will not be possible to keep the object cold for a long time, but you can win a couple of hours from the heat.
