Heat, Frost, and Moving Air: The Thermodynamics of Outdoor Discomfort
· 12 min read
There is a particular kind of betrayal that only a thermometer can deliver. You glance at it through the window, see a perfectly reasonable minus five, put on your coat accordingly, step outside, and discover within thirty seconds that the air has teeth. The thermometer was not lying, exactly. It simply omitted the part where a twenty-knot wind turns minus five into something that will freeze exposed skin in under ten minutes.