Windmill Animation

What is this device for? Who knows?🔝🔝🔝
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This is an old windmill that was installed in hot, dry areas (for example, Texas).⠀
They pumped water for livestock and other household needs.
Maybe You know some interesting facts about them???⠀
This artwork you can find here ➡️ http://artforgame.com/route-66/ ⠀