THE brief history of the REFRIGERACION 
La refrigeration contributes to raising the standard of living people of all countries. The progress made in the cooling in recent years are the result of a work as a whole, in which technicians, related staff, engineers, scientists and others, have contributed their skills and knowledge, this knowledge. It applies to the field of refrigeration by those who design, manufacture and install and maintain refrigeration equipment. The most common example which is easily recognized is in the preservation of food. Therefore, the cooling has become indispensable in modern life coexistence.The history of the ice dates from very ancient times eat historical records. While the man in the caves of the stone age knew what was the ice, had no idea about the use of the same to preserve the food. Thousands of years later, the Chinese learned that ice improved the flavor of the beverage.Then, they cut the ice in the winter, empacaban it, straw and broza and sold it during the summer. The ancient Egyptians found that they could cool the water depositing in cantaros porous placed on the roofs of the houses to the bet of the Sun.The Greeks and the Romans transported snow from the peaks of mountains to a conical pits covered with straw with branches and then covered with thatched roof.  Some of the first experiments registered on the preservation of foodstuffs back to thousand six hundred twenty when Francis Bacon try to keep a chicken filled with snow.The scientists studied these microbes and found that their rapid multiplication took place in conditions of heat from humidity, such as those providing food materials.In contrast to temperature of 50 ° F (10 ° C) or less the same types demicrobios not multiply at all. Through these scientific studies it became clear that fresh food could preserve safely at temperatures of 10 ° C or less. As had little knowledge about how to produce temperatures sufficiently low from their natural sources on Board of boats to the major cities of the world.