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The concept of refrigeration emerged in the 18th century when Scottish professor William Cullen demonstrated the principles of artificial refrigeration at the University of Glasgow in 1755. He used a pump to create a vacuum over a container of ether, causing it to evaporate and absorb heat, thus lowering the temperature. This foundational idea inspired further developments, leading to the design of practical refrigeration systems in the 19th century, notably by inventors like Jacob Perkins and Carl von Linde. Their innovations transformed refrigeration from a scientific curiosity into a vital technology for food preservation and climate control.

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