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refrigerator by Ishitha

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lis lab3

on 10 April 2013

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Transcript of refrigerator by Ishitha

Refrigerator Who Built It? That's My Presentation! Jacob Perkins an inventor, built the first refrigerator. He was born in the mid 1700s and died in 1849. The first refrigerator was invented in 1834. When Was It Built? People commonly used ice boxes before the refrigerator was invented. Though, in the Medieval times, people used to place containers in barrels of brine [salt] to keep them cool. they also used to use cellars to cool things. What Was Used Before The Refrigerator? It was built to cool things such as food, and preserve them better than an ice box. Why Was It Invented? Now refrigerators and freezers are used for cooling drinks and foods more faster and conveniently. Old ice boxes Latest refrigerators
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