Posted by Brad Buchanan on January 25, 2013 at 08:26:10 from (74.71.185.165):
In Reply to: Wind-chill question posted by Brad Buchanan on January 24, 2013 at 10:31:12:
Wow! Thanks for the great response.
Some fascinating theories. I will gladly defer to the more educated posters here as I must rely on my high school science classes in the distant past.
Anyway here is my two bit theory:
processes that produce heat are referred to as exothermic as they produce heat ie. fuel being burned in your tractors engine.
Processes that remove heat are referred to as endothermic ie. ice cubes melting in your hand crank ice cream maker or the 40mph wind cooling your tractor on the hill.
In the case of the two tractors the endothermic process continues until all the heat is removed from the machines. The tractor on the hill will indeed cool much faster but over the period of time both will cool to 0 degrees f.
Which will start more easily? Both engines being at the same temperature should start equally well but in my case if I was on the hill cranking the tractor the 40mph wind would blow my mad bomber hat off my head and It would take me 5 minutes to chase it down so....
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