Today I am going to talk you about the invention of the refrigerator. I chose this topic because I think we all can't imagine our lives without food, so we also can't imagine our lives without the refrigerator. I'm going to present you this topic with the help of power point and I really hope that in the end of my presentation you will know something more about refrigerators.
The invention of the refrigerator
The conveniences we enjoy in our homes are the product of many machines we use every day to make our lives easier. We must be aware that it is only because of dedicated inventors that have spent years of their life, searching of a way to make all this possible. We're talking about machines such as the refrigerator, for example. The idea of a machine that would be able to prevent food spoilage has actually been around for a very long time before the invention of itself. It was only in the late 1834 that Jacob Perkins, a young inventor after making a design persuaded John Hague to realize his idea, and like that the first kind of refrigerator was born.
In the beginning, there were made ice houses to provide cool storage for most of the year. These ice houses were placed near freshwater lakes or packed with snow and ice during the winter. As we can see in Thomas Jefferson's diary, which chronicles the process of maintaining the ice house at the Monticello Estate, this processes were very complicated. Every winter, Jefferson brought more than 60 wagonloads of ice from the Rivanna River to keep his ice house filled. The ice house was a huge source of trouble, just by the expense of keeping it stocked.
While Jefferson was busy keeping his ice house stocked, Benjamin Franklin working with chemist John Hadley in 1758 was leading us to the invention of the refrigerator. They were experimenting with the effects of evaporation using a thermometer. With some methods they were able to drop the...