Originally Posted by
DrIsotope
Riding 10mph into a 25mph headwind, wind speed 25mph.
Riding 25mph with a 25mph tailwind, wind speed 0mph.
And I reiterate: the wind speed is the wind speed; if you were to ride 25mph into a 25mph headwind, that doesn't magically make the wind speed 50mph. That's not how air works.
Maybe, maybe not. I'm trying to determine windchill factor not windspeed, per se. But I can guarantee that standing still in a 25mph wind versus traveling at 25mph into that headwind at 21
°F are two entirely different experiences.
I may be mistaken, but what sounds implausible is that your response implies that at 21
°F with a 25mph wind that a body will lose heat at the same rate
whether standing still or in motion.