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Who Invented Refrigerator
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Although, the idea of preserving food using cool temperatures was very old yet the first known artificial refrigeration(invention of refrigerator) was demonstrated by William Cullen at the University of Glasgow in 1748. Before the invention of the refrigerator, people used to preserve their food by placing them near freshwater lakes or packed with snow, in winters they used ice or icehouses. Natural means are still used to cool foods today.
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