Modern humanity often does not even have an idea of what history preceded the fact that we have a great opportunity to use refrigerators. It is so familiar and routine that our kitchen has this indispensable assistant. Today, buying a LG refrigerator or Samsung is not a big problem, because the choice of models in the modern household appliance market is very wide. To do this, you don’t even need to rush to a supermarket selling home equipment. It is enough to visit the website of the virtual store and choose the model you like. Even if the need for food cooling has existed from time immemorial, but only relatively recently people invented a machine that produces cold. Since the mid -nineteenth century, a compressor has been invented from the middle of the nineteenth century, which allowed to develop the cold. Before that, structures were used in which ice and snow existing in nature were preserved and used.