The history of keeping cool

Published On: Jul 18 2012 11:24:26 AM CDT   Updated On: Jul 16 2013 08:59:54 AM CDT

With temps on the rise nationwide, look back at the ways humans have tried to stay cool through the centuries.

Cooling - Persians
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Medieval Persians used wind towers, which worked kind of like a reverse chimney. Tall windows captured wind, which was funneled into and circulated around homes, according to

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