Fire consists of hot gases that move upwards. If it were radiant heat,
then the heat would not specifically move away from the source of
gravity. If you aim a butane torch downward, most of the heat will
still go up. If it were radiant heat, then it heat from the torch
would move downward.
What mechanism other than convection would cause the heat to go upward
as opposed to in all directions?
I don't know. What is it?
In the original message you were stating that most of a flame's heat
is radiant. How can that be when most of the heat of a flame goes up?
Thermal radiation does not favor any direction, is simply travels from
hot to cold. Convection, OTOH, causes hot gases to rise and cold gases
to sink. This is why a flame's heat goes up. It's convective heat in
Only in micro/zero-gravity is the majority of the flame's heat
transfer through radiation.
Everyone knows, Heat rises...
That's why when you snuff out your Cigar in the palm of your hand, it
doesn't hurt... Here, hold this piece of charcoal...
Anyone ever see Lawrence of Arabia?
He could hold a burning match in his fingers until it went out.
He had some "I don't give a damn" attitude about it, but since heat rises,
we all know he was a girly man, it didn't hurt a bit...
Heat seeks cold in all directions... That's why you insulate below radiant
Earth averages 55dF & your floor is 80dF...? heat rises right? I don't need
Of course, if I sell LPG, Electricity, or NG, I might not be sold on that
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