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Old 04-04-2019, 04:15 AM   #18
ApS
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Post Evaporative Cooling...

The canvas bag to the left of the license plate is for cooling the water inside: water seeps out slowly, evaporating in the dry heat to cool the contents.

Early auto "air-conditioning" used the same principle—lately nicknamed a "swamp-cooler". (Still made for house or car).
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