munion

Ok could you provide me some please?? Where should i start? I want to know what influences has the relativity to thermodynamics.... Could you explain me how my question will be answered? The papers of plank-einstein that i read there are in controversy with the paper of Ott and really baffled me And if you know what will happen especially with the entropy of the photon gas please explain it to me... Merged post follows: Consecutive posts mergedImagine that you have a box with steam if that box is moving then according with einstein - plank papers the temperature is falling (According to the Ott happens the opposite!!). this mean that one observer will observer steam another with greater speed water and another with much more speed ice? except if the relativity does not affect the entropy of the system. Merged post follows: Consecutive posts mergedhttp://www.aip.org/pnu/2007/split/843-1.html Now there is a third approach T'=T0....

Ok then i wont learn anything about thermodynamics thank you for your support here... For the god shake it is only a question. Ps i have taken also some lessons in thermodynamics in university but that doesn't mean anything.Could you help me out with this?

If you meant that way i m own you an apology... i misunderstood. But you could wrote to me immediately i didn't knew about the gibs free energy

Yes you think.. at least i m not doing the smart guy here not the physics "expert" i have a lesson also for you for the ridiculous answer that you gave me... http://puhep1.princeton.edu/~mcdonald/examples/uoveromega.pdf By the way with the link in Wikipedia i would not intent to insult you i put it there as a reference and only that... You guys really what is your job here to humiliate the question of the physics amateur? If you have an objection or you find a mistake please say it with no more comments... Merged post follows: Consecutive posts mergedI would not ask something again i will leave you to discuss the physics with your superior intelligence and as one last thing i would like to ask sorry for my silly questions.

The Volume is not constant ΔV not 0. The P=0 is derived by 1rst thermodyn law because as you say ΔU=0 the box *mounted on an elephant whose ΔQ=0 so ΔW=0 => P=0.... Merged post follows: Consecutive posts mergedW = \Delta (p\,V) I think would be helpful http://en.wikipedia.org/wiki/First_law_of_thermodynamics

Yeap thats the word

If remain the same then because ΔQ=0 (we assume that we have isolated box) and take notice that V'=1/γV0 this means from the 1rst law of thermodynamics that: ΔU=-ΔW+ΔQ => ΔW=0 => P=0 ???

Whatever frame you want except the rest frame.

I have another question about relativity combined with thermodynamics: Let assume that we have a Box of Volume Vo. Inside the box there is photons (photon gas). The gas has internal energy Eo, pressure Po and the box is accelerated to a velocity near to the speed of light. What will happen to the internal energy and the pressure of the gas?

I m sorry for that Merged post follows: Consecutive posts mergedMy reputation is falling at least i had profit from my stocks Merged post follows: Consecutive posts mergedAnd something last my behavior is not something that i shame for...

"The short answer is, how the speed of light is not a part of the definition of how we measure time." But how could this happen according with relativity the speed of light it has primary role in that; all the reactions in nature (electromagnetism nuclear and gravity forces) happening with that speed. "Where in "the second is the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom" do you see any reference to the speed of light?"" If all reactions in nature happening with the SOL then if this speed change is affecting also and the previous definition. Think about the 4D time space everything in this you me and my slow mind are running with this speed if could be changed then the time would be affected.

Hell NO give some time if i don't clear out the matter with the clocks it is difficult (give me an example with that why in generally would not happen the clock speed change as the SOL change)

Not exacly.... Merged post follows: Consecutive posts merged Ok this is something that i don't understand if this clear out then my problem would solved... If the SOL slow down by a factor a the clocks would running slower by the same factor ?

This is not an argument... (about the angels) "There was no change if there is no change in what is measured, including everything that can be measured" You can compare something with something else but this is a relative process; you understanding the reality by the differences. There is no change if there is no differences even for the speed of light.

The article says " Suppose that we calibrate marks on a ruler using this definition one year, then next year find that light takes longer than 3 ns to travel the length of the ruler." No you WONT find the next year that light takes longer than 3 ns this would be valid IF the time flow does not affected by the speed of light. Is that simple what is your objection here? Everything will flow slower and the result would be the same. The calibration in first year will be valid and the next. Except if you mean that in the second case the 3 ns is "more" than the 3 ns of the fist case. And yes i m confused i don t have a clear mind as yours.