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I should probably leave this one alone, but my discretion is slipping today. Physiology lecture? This description sounds more like the physics lecture -- i.e., you're describing the increased rate of cooling due to a higher temperature gradient at the surface of the object being cooled. Mammals have another factor to deal with, and that is the "moisture gradient:" besides the nearby warm air being carried off by the wind, moisture is carried off as well, making the water vapor gradient steeper than it would be in still air. The significance of that is in the heat of evaporation, which we experience as the cooling effect of wind when we sweat and why we fan ourselves to cool off. The steeper the water vapor gradient, the quicker water at the surface will evaporate, thereby accelerating the cooling. That's why we can stay cooler than our surroundings on a hot day, and why we can get colder on a cold day. Of course your 240 won't have to worry about that unless you're spraying it with a garden hose, but in that case, it would quickly be encased in a layer of ice which would protect it from the wind. Tends not to be so helpful for us, however.
Thank you for your tolerance and I'll try to re-engage my discretion now ....
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'81 GLT 245 @ 259K; '83 DL 175K
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