Heat as Electromagnetic and Molecular Kinetics

AI Thread Summary
The discussion focuses on the emission of heat in the forms of UV, IR, and visible light, questioning the thresholds for light appearance and the colors produced. It explores the capabilities of an induction furnace set to 700THz and whether it can emit violet light at that frequency. The conversation also delves into the limitations of color illumination, linking it to molecular and electron dynamics. The participants seek clarification on the relationship between temperature, heat types, and transport mechanisms. Overall, the thread emphasizes the complexities of heat emission and light generation in various contexts.
Ronie Bayron
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Consider the image below
13103896.jpg

Does it emit all 3 types of heat in the form of UV, IR and light?
At what threshold does light start to appear and what colors should it illuminate?
Hypothetically, say I have an induction furnace and is capable of setting frequencies to about 700THz, will it be able to illuminate a colored(violet) light at that frequency?
So, what limits its color? Does the illumination depends on molecular or electron dynamic response? I'd be delighted to see response from the forum. Thank you.
 
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Ronie Bayron said:
all 3 types of heat in the form of UV, IR and light
T > 0K is "all" types of heat; at first I read this as "all transport mechanisms" but your phrasing is a bit ambiguous.
 
Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'

Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'

So here is the motional EMF formula. Now I understand the standard Faraday paradox that an axis symmetric field source (like a speaker motor ring magnet) has a magnetic field that is frame invariant under rotation around axis of symmetry. The field is static whether you rotate the magnet or not. So far so good. What puzzles me is this , there is a term average magnetic flux or "azimuthal mean" , this term describes the average magnetic field through the area swept by the rotating Faraday...
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