Originally Posted by
6933
Because it's sitting on a heater called the ground.
I'm afraid that's not really correct. Conduction by contact with the ground pulls heat away from a body of water faster than the air. This is why you put a pad down to sleep on ground.
I'm not even a physics major but from what I can tell there is actually some abuse of terminology here.
Convection occurs as a transfer of the warmed matter (i.e. steam or the rising and falling of cold/hot water within a body).
Conduction is through direct contact with an object (i.e. sit on a cold stone and see whether your ass or your face gets colder faster).
Radiation is transferring energy by waves (i.e. into the air).
IIRC my environmental medicine training said that conduction results in the fastest cooling, convection is the second fastest and radiation is the slowest.
It is bad policy to fear the resentment of an enemy. -Ethan Allen
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