cold body will have entropy increased. hot body will have entropy decreased. In the process of thermal conduction, there is new entropy added. I am not sure about the name of such new entropy, maybe it is called entropy of mixing (not sure).
If you try to calculate the entropy change for both...
Progress
This is the experimental data of thermal conductivity of stainless steel 304L at low temperature. The data is calculated with the Fourier's law of thermal conduction. I checked many times in the excel file and I confirmed that there is no mistake in the calculation. The parameters are...
maybe I didn't ask it clearly. Actually I am thinking that the particle defined its own position and made its own wavefunction collapse. So it would not have anymore chance to quantum tunnel? But it should tunnel because for outside observer, the wavefunction includes quantum tunneling.
The QM is saying that a particle in some potential pattern will have a wavefunction that describes the probability to find the particle. And then it also said that observation will make wavefunction collapse into measured value. For example, the electron in an atom will be in one position after...
I remember there were three kinds of interpretations of a measurement on a particle.
1. realist position, which implies that the particle was there before measurement. Because you didn't do measurement, you did not know it was there. This implies a loophole in quantum mechanics that there is...
Homework Statement
Given L (q, dq/dt, t).
translation: q ---> q + e (e is infinitesimal constant)
show that if ∂L/∂q = 0, then L is symmetry under the above translation.
then find conserved quantity.
Homework Equations
S = ∫ L dt
The Attempt at a Solution
My attempt is nothing... because I...
I don't know where I should ask this question. I don't even know the appropriate thread level anyway. Ignore those stuff.
I feel this topic is interesting because I don't understand something. We are using so many satellites. Why can't these satellites record the formation of the crops circles?