How long has air conditioning been around?
It is difficult for most of us to imagine life without air conditioning. Modern AC units have come a long way over the past 30 years. Precise temperature control, humidity control and quietness of operation are all things we have been accustomed to.
But what did our great grandparents do to get comfortable? And how about their great grandparents – certainly air conditioning was not available then.
Or was it?
Air conditioning can be traced back to the days of the Egyptians, perhaps even before.
They used a method we can easily understand today. Early cultures, say 2,000 years or so ago, hung wet cloth or wet reeds in their window openings. Why?
Modern day example: Drive down the highway, roll your window down, and put out your hand. You hand will feel cool. …
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