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Heat sources--a science explanationFrom: Steven
Subject: Practice
Date/Time 2008-08-19 22:57:34
Remote IP: 76.251.209.39
MessageYou could argue that to be true for *any* heat source.
Any source of heat--including the sun--is really just a
radiation-emitter.
All "heat sources" emit what is called "electromagnetic radiation"
It includes light.
It includes higher frequency stuff like UV, X-rays, gamma rays.
It includes lower frequency stuff like infrared, microwave, radio waves.
All of these get emitted to some degree--depending on the object emitting.
It's the reason coils on a stove or oven get red.
When the portion relating to the deep infrared and microwaves come into
contact with other objects (i.e. you), they match the natural resonance
of the molecules and cause them to vibrate faster.
The observance of "temperature" is just the sensation experienced by faster
vibration of molecules.
There are only two differences between the sun and the inside of an oven.
One is that the sun is MUCH MUCH more intense, and the other is the
source of the radiation--an oven source is by electrical friction, and
the sun's source is nuclear fusion.
Steven
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