The refrigerator, also known as the ice bucket, was developed from the ancient "Ice Jian" and has a clear function. It can not only preserve food, but also emit cold air to cool the interior. It was the invention and creation of the ancients and revealed to us one aspect of ancient life. Ice Jian is a container of ancient ice. "Zhou Li Tianguan·Lingren": "The sacrifice for the ice." It can be seen that there was an original refrigerator at the time of the Zhou Dynasty, but the ice was not always in the year, especially in the hot summer, the ice was enough. precious.
There are many wooden tire refrigerators in the late Qing Dynasty, which are made of more delicate wood such as mahogany, rosewood and cypress. This piece is made of mahogany, imitation bamboo pattern, and exquisitely made. The shape is a large mouth and small bottom, the appearance is like a bucket shape, the lead leaf is inlaid, and there is a small hole at the bottom, and the structure is similar to a wooden barrel. There are lifting rings on both sides of the refrigerator cabinet, and there are cover plates on the top, and the double money holes are opened on the top, which is both a pickpocket and a cold air vent. In order to make the refrigerator at a certain height for easy access to ice cubes and food, there is a box seat.
This is the standard of the refrigerator structure, the box barrel and the base are decorated with luxurious and beautiful. Made in pairs, when used as a large household.
From the perspective of economics, at that time, the value of the artifacts, the value of the artifacts, must now be higher than the lower value of the artifacts that were passed to today. This is the case today, and it must be the same in the future. This is a trick to choose a collection. This point, for those who want to collect refrigerators, there is no need to fix food and clothing. In the society at that time, the wealthy people were absolutely a few. The mahogany furniture could not be used in the refrigerator made of mahogany, which is why the value of the refrigerator is high. Not only that, it will come. The meaning will be even more important.
The invention of the refrigerator keeps humans away from the moldy food, can lower the temperature and save it, let us enjoy healthy food in the summer, can not help but say that technology brings people a kind of progress.
History of invention
In the mid-17th century, the word "refrigerator" entered the American language. Until then, ice was just beginning to affect the diet of ordinary American citizens. With the development of the city, the sale of ice has gradually developed. It is gradually being used by hotels, hotels, hospitals and some discerning city traders for the preservation of meat, fish and butter. After the civil war (1861-1865), ice was used to refrigerate trucks and also entered civilian use. By 1880, half of the ice sold in New York, Philadelphia, and Baltimore, and one-third of refrigerators sold in Boston and Chicago began to enter the home, because a new home device, the refrigerator, was the modern refrigerator. The predecessor was invented. Now there are similar products with freezer.
Making an efficient refrigerator is not as simple as we think. In the early 19th century, inventors' understanding of the thermophysical knowledge that was essential to refrigeration science was shallow. It is believed that the best refrigerators should prevent the melting of ice, and such a view that was very common at the time was clearly wrong, because it was the melting of ice that played a role in refrigeration. In the early days, people made a lot of efforts to preserve ice, including wrapping the ice with a blanket so that ice could not play its role. It was not until the end of the 19th century that inventors succeeded in finding the precise balance of insulation and circulation required for efficient refrigerators.
But as early as 1800, Thomas Morr, a Maryland farmer with invented genius, found the right way. He owns a farm about 20 miles from Washington, where the village of Georgetown is the center of the city. When he used his designed refrigerator to transport butter to the market, he found that customers would go through the melted butter in the competitor's bucket and give him a price higher than the market price. He is still fresh and hard, neatly cut into A pound of butter. Moore said that one of the benefits of his refrigerator is that farmers do not have to go to the market to trade at night in order to keep their products cold.
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