Let me be clear on some basics. Please correct if I am wrong.
Energy is a measure on the ability to do work on matter. Matter can do work on other matter, which is kinetic energy (eg; a moving object). EM wave can do work on matter, hence they have energy too. Heat is a just IR wave in the EM...
I was wondering how would any substance can be black for the infrared. If a substance reflects all the infrared rays, it should be white for the IR rays. If it absorbs the IR rays, it would cause the lattice to giggle, and emit heat, which is again in IR. So in any case, it should emit IR, right?
Is there a theoretical upper limit to the temperature attainable by any matter? May be at some extremely high temperature, those particles in the matter get converted into energy (mc^2), and that's the temperature limit of matter?
As I remember learning in school, heat cannot flow from cold to hot. But isn't that true only for conduction and convection? Radiation heat is purely Infrared waves, and there should not be any issue with that. Please correct if I am wrong.
May be I did not clearly state my question.
Let me elaborate:
Heat is an electromagnetic wave, and in the EM spectra, it is the Infrared wave. The wave hits a conductor, the EM infrared wave causes the atom in the conductor to move/vibrate. The atom got the energy to move around, from the...
I just read this URL.
I am not convinced that the atoms and molecules move when conduction happens. Will it move, or as Pythagorean said, it just vibrates? It should be just vibration. Or there wouldn't be any...
What's the speed of heat radiation in vacuum?
And how does the heat propagation (in vacuum and through a conductor) happen? Similar to the particle theory and wave theory for the light, is there any theory for the heat energy?