Recent content by theojohn4

Where everybody else has given me reasons, he has given none. No major scientific discoveries were ever made by somebody saying 'No, it is just wrong', a budding physicist learns nothing that way.

You may have missed the first part of my question "A very hypothetical situation". Of course I know there is no outside to the universe, you can see this when I say "it just makes a bit more sense to me than the idea of space expanding into nothingness". You seem to be spending more time...

Yeah that's what I figured, it just makes a bit more sense to me than the idea of space expanding into nothingness. Questions, answers, more questions.

Could you briefly write down some of the reasons why it doesn't work that I can look into it in more detail?

Yes I will pursue the idea, even if phinds above says it is overwhelmingly wrong, when I know enough, but for now I don't know anything about quantum entanglement and I really only know the basics of relativity, I know nothing of it w.r.t cosmology. Just a basic question for a basic answer...

thanks

I don't know... couldn't red shift still occur for shrinking objects?

A very hypothetical situation: Might an observer outside the universe see the universe itself staying a constant size, with each of the objects within at (on average) a static centre of physical co-ordinates, yet the objects themselves are shrinking? Having had a single cosmology so far where...

Hi, So I'm doing boltzmann's entropy hypothesis. I have a basic question about the mathematics of logarithms. For \frac{ΔS}{K_B}=ln(W_f)-ln(W_i), I do the correct maths and go \frac{ΔS}{K_B}=ln(\frac{W_f}{W_i}), and finally take the log of the equation to get...

A different wavelength is rare? I was under the impression objects are the colour they are due to the wavelengths of light that can be absorbed/emitted. So a red surface will absorb all the light and then emit light in the red frequencies?

Reflection/refraction of light is due to the absorption of photons by electrons in the governing atoms, and is then reflected/refracted with a different wavelength and direction. I understand why the light might be a different colour (wavelength), but I don't understand what causes the incident...

Homework Statement Show that the following is an eigenfunction of \hat{H}_{QHO} and hence find the corresponding eigenvalue: u(q)=A (1-2q^2) e^\frac{-q^2} {2} Homework Equations Hamiltonian for 1D QHO of mass m \hat{H}_{QHO} = \frac{\hat{p}^2}{2m} + \frac{1}{2} m \omega^2 x^2...