Thursday started off brutally cold in Chicago, with wind chills dipping below zero, but what exactly does that mean and how is it calculated? A wind chill is the "measure of how cold the air feels on ...
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What is wind and how do we measure it?
Wind is the invisible force we feel on our faces, see rustling through trees, and hear whistling around buildings. But what exactly is wind, and why does it behave the way it does? At its core, wind ...
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