The concept of keeping foods cold is certainly not a new concept, and after this over 99.5% percent of homes have a refrigerator. Despite the fact that refrigerators are a common appliance in many homes, it's still a relatively new invention.
During the early days there have been various ways for which people kept their food cool. They had to be inventive and work out use of their natural surroundings. People utilized many methods such as placing their food in streams, hiding it in caves and creating underground cellars for "refrigeration."
Many individuals also cut ice when you look at the winter time and stored it in ice houses and cellars. It had been in a position to stay cool for an extended period of time by way of salt to cover the top of it. The very first appliance which had any resemblance into the refrigerator was called an icebox. They certainly were simply designed wooden boxes which were lined with a few style of metal. Ice boxes were developed prior to the 19th century.
People would then purchase ice and store it inside the ice box. Since the ice would slowly melt, many of these ice boxes had a drip pan inside. These drip pans were easily removed and then dumped. Ahead of the actual development of refrigerators, many studies were performed on the idea of refrigeration. The pioneer of the technology of refrigeration, Dr. William Cullen, did early studies in the 18th century and then he observed how liquids evaporated in vacuum type settings.
The development of the initial refrigerator was at 1876 by a German engineer named Carl von Linde. He was usually the one who perfected the idea of converting huge amounts of liquid into a gas so as to keep consitently the defined environment cold. By the year of 1920, a lot of companies were manufacturing different types of refrigerators. A lot of companies also labored on the concept of combining the refrigerator and freezer compartments of refrigerators.
Over time refrigerators developed into what we know them as today. You can purchase many styles of refrigerators such a small designs for dormitory use, hand and hand models and people that are economically advantageous because of the freezer on the bottom. Whatever type of refrigerator you're in the marketplace for, there was a model to suit your needs and budget. Additionally they appear in a wide range of prices, also it all hangs from the amount of money you want to invest in one. From the earliest model such as the icebox, to your ultra-modern side by side, refrigerators are a convenient appliance that no home can perform without.
