Air Conditioning and Refrigerators From The Fourth Century Bc

November 1, 2010 at 8:27 pm | Posted in Lifescape | Leave a comment
Persian engineers stored ice in the desert and developed an effective cooling system in the fourth century BC., in Iran.
clipped from quazen.com

In the fourth century BC., in Iran, Persian engineers already mastered the technique of storing ice in the desert, during the summer, and they developed an effective cooling system, with wind towers (badgirs) to tame the searing temperatures.

They discovered that different temperatures, between the interior and exterior of a building, caused pressure variations which makes the air flow and easily cool temperatures during summer days.

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