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Refrigeration

technology Maturity 9-11 Vital Level 3

Machines can make things cold. They take heat away. This helps keep our food fresh. It helps us eat good food. We use them every day. Do you have a cold fridge at home?

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🖼️ Images & Media (11)
File:Kuehlregal USA.jpg
Kuehlregal USA.jpg
File:Ice Harvesting, Massachusetts, early 1850s.jpg
Ice Harvesting, Massachusetts, early 1850s.jpg
File:William Cullen.jpg
William Cullen.jpg
File:AppareilCarré.jpg
AppareilCarré.jpg
File:Early refrigerator car design circa 1870.jpg
Early refrigerator car design circa 1870.jpg
File:AndrewMuhlPatent02.png
AndrewMuhlPatent02.png
File:SS Dunedin by Frederick Tudgay.JPG
SS Dunedin by Frederick Tudgay.JPG
File:Early household refrigerator in Popular Science 1919.png
Early household refrigerator in Popular...
File:Food into a refrigerator - 20111002.jpg
Food into a refrigerator - 20111002.jpg
File:Refrigeration.png
Refrigeration.png
File:RefrigerationTS.png
RefrigerationTS.png
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📚 Content adapted from Wikipedia | Readability: FK 14.1 | Vital Level 3