Torben said:I'd suspect that in one way, yes, you could say that there are illegal colours. If the Planck length exists then there are a limited (although still unimaginably vast) number of positions electrons could occupy, and therefore a limited (though even more vast) number of jump lengths/energies they could make, so the number of possible wavelengths could be limited (although insanely, mind-buggeringly huge).
Torben
If the slightest change of a rheostat changes the color of an incandescent bulb, how does that change relate to the physics of it all?
wikipedia said:The heated filament emits light with a continuous spectrum. The useful part of the emitted energy is visible light, but also significant energy is given off in the in the near-infrared wavelengths.
mneary said:I see two different definitions of color being used here, and I think some people are confused.
There's the energy of a single photon (and by extension, any number of photons with the same energy). Many people associate this with color. It will activate the sensors in our eyes according to which sensors are relatively sensitive to that wavelength.
Then there's the mix of different wavelengths that we see every day. We see these as color as well, because our sensors are stimulated by the various wavelengths present, in proportion to how each present wavelength overlaps the sensitivity curves.
If you are not going to talk about color perception then you should not talk about color. Color is perceived.Torben said:I'm not sure what others talk about but I'm keeping it "simple" (ha ha) and just thinking about the energies. If we get into the perception of mixed colours then the number of possible combinations just gets silly--if it wasn't already.
Torben
3v0 said:If you are not going to talk about color perception then you should not talk about color. Color is perceived.
Did I not already answer that question? Changes in the quantized energy levels of bound electrons is NOT the only method of producing photons. That fact has nothing whatsoever to do with perception.crashsite said:...
But, to respond to your point: Are there illegal energies, which then cannot be imparted to photons to represent certain colors (even within the visible spectrum)?
3v0 said:If you are not going to talk about color perception then you should not talk about color. Color is perceived.
So maybe there are "Illegal Energies" but not "Illegal Colors".
Papabravo said:Did I not already answer that question? Changes in the quantized energy levels of bound electrons is NOT the only method of producing photons.
Papabravo said:If the temperature is continouous then the wavelengths and frequencies are also continuous.
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