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A black body is a perfect emitter, it emits eveything it absorbs . That's why black car seats get so hot in the Sun. ...

... heat added I'm pretty sure you ment Isochoric. Define the specific heats Cv = degrees or freedom / 2 * R = 5/2...

...point is this. Photons are not defined or in any other way associated with ... of the medium, but, due to being absorbed and re-emitted or simply ricocheting off...

...every direction to a finite distance" "The photon will go on forever until absorbed " The second comment seems to preclude the first, but...

...radiation dose. This comes in two categories: (1) The absorbed dose, (or physical dose), is defined by the amount of energy deposited in a unit mass in human tissue (or whatever...

... that are absorbed stay absorbed . Many are re-emitted and..., which is where color is defined by the "reflected" light.

... no process for photons as conventionally defined to turn into material particles, essentially because... far too high (E = mc² and all that). Absorbed photons are degraded into thermal...

...or reflected. Wood, on the other hand, absorbs the light in wavelengths we can see. ...imagine electrons whizzing around in clearly defined paths, like cars on a racetrack. The...