Electromagnetic waves

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Offline The Champ

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Electromagnetic waves
« on: 21/09/2010 15:41:05 »
When we heat a metal, the positive kernels begins to vibrate. will this vibrations produce electromagnetic waves ?

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Offline Ron Hughes

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Electromagnetic waves
« Reply #1 on: 21/09/2010 17:56:13 »
I don't know what you mean by positive kernels will vibrate. The atoms will vibrate and at low temperatures will emit infared radiation. The higher you raise the temperature the higher the frequency of emitted radiation.
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Offline tommya300

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Electromagnetic waves
« Reply #2 on: 21/09/2010 18:44:09 »
When welding I understand the the whole light spectrum infrared to ultra violet all the way to cosmic energy and more. The energy that taked to heat the metal, the atomic kinetics will always emit the electromagnetic radiation. What ever Positive Kernels are?

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Offline Bored chemist

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Electromagnetic waves
« Reply #3 on: 21/09/2010 19:10:13 »
Kernel and nucleus both mean nut. I guess The Champ is not a native speaker of English. It's not a bad attempt at a translation.
Anyway, since the electrons are much lighter than the nucleus it's generally considered to be them which emit radiation. If you get the metal hot enough you can see it glow.
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