confidenceguy
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Why low temperature copper bar is shorter than higher one?
confidenceguy replied to alpha2cen's topic in Classical Physics
you can also find more details about it on http://en.wikipedia.org/wiki/Soldering -
how much energy is ther in universe?
confidenceguy replied to silverwind's topic in Modern and Theoretical Physics
finite i think, 1st or 2nd law of themodynamics, energy is neither created nor destroyed. Same applies to mass, neither created nor destroyed, only changed from one form to another therefore there would be a fixed amount of energy available from all forms. as for the estimate of the energy..... no idea whatsoever! -
I agree with woelen. thanks.