Way back in the day people used to use ice or snow from the mountains (or locally if it was cold enough) to keep food cold. In the 19th century, people in England used ice boxes made of wood, lined with tin or zinc, and insulated with cork, sawdust, or seaweed. In 1834 Jacob Perkins invented a machine that used a vapor compression cycle to work.
Warmer winters in 1889 and 1890 caused shortages of natural ice in the US and spurred the use of mechanical refrigeration. Early versions of the refrigerator started popping up in the 1910's in the US. Freon was introduced as a way of cooling food in the 1920's however it wasn't the most environmentally safe way of going about things.
By the 1980's more modern and safer versions were being made that were more affordable and included features like automatic defrosters and ice makers.
Today refrigerators have televisions built into them, can tell you what to cook based on their contents, have multiple drawers for different things, and even come in the form of a table! As technology and needs advance, so do the forms to meet the functions.
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| this table has a refrigerator core so there's no need to get up and walk to the fridge for cold food! |
sources:
http://www.ehow.com/about_5378774_history-refrigerators.html
http://www.keepitcool.com/history_of_the_refrigerator2.htm



























