880 reputation
730
bio website ziga-lausegger.t15.org/strani/…
location Slovenia
age 28
visits member for 3 years
seen Nov 27 at 17:43

I love to program and crosscompile baremetal C programs for ARM based microcontrollers, I love physics and I love writing science documents/books in LaTeX. It amazes me how physics is connecting all science and is helping mathematics to evolve. In order for science profession to comunicate on a high level I advise everyone to use Linux, LaTeX and a good vector imaging program like Inkscape.


Jul
23
comment How can we calculate (relativisticly correct) ratio $\lambda_e/\lambda_p$ if proton and electron have same speeds
I already figured this out.
Jul
23
revised How can we calculate (relativisticly correct) ratio $\lambda_e/\lambda_p$ if proton and electron have same speeds
edited body
Jul
23
asked How can we calculate (relativisticly correct) ratio $\lambda_e/\lambda_p$ if proton and electron have same speeds
Jul
22
accepted Ultrarelativitistic particle - what kind of a particle is this?
Jul
22
comment Ultrarelativitistic particle - what kind of a particle is this?
Thank you! But i am to use the same equations for ultra relativistic and relativistic particles? I guess yes, but a confirmation would be nice.
Jul
22
asked Ultrarelativitistic particle - what kind of a particle is this?
Jul
22
comment How can we deduce the relation $m = \frac{m_0}{\sqrt{1-\frac{v^2}{c^2}}}$ between relativistic mass and rest mass in special relativity?
Check my anwser. Ask if you need further explaination.
Jul
22
comment Atom emitts a photon - what is the frequency of the energy of the photon?
One more question. If the atom is very hardly bound the whole crystal takes the momentum $p$ right? In this case am I alowed to swap the rest energy of the iron atom $E_{0~Fe}$ with rest energy of a whole crystal $E_{0~crystal}$?
Jul
22
accepted Atom emitts a photon - what is the frequency of the energy of the photon?
Jul
21
comment Atom emitts a photon - what is the frequency of the energy of the photon?
There was more hidden tricks in this problem it seems. But now it is solved. Thank you.
Jul
21
revised Atom emitts a photon - what is the frequency of the energy of the photon?
added 1133 characters in body
Jul
21
comment Atom emitts a photon - what is the frequency of the energy of the photon?
You mean like this: $\sqrt{ \left( {E_{0~Fe} + \Delta E}\right)^2 + {p_1}^2c^2 } =\sqrt{ {E_{0~Fe}}^2 + {p_2}^2 c^2 } + E_\gamma$ ? This looks even better now.
Jul
21
revised Atom emitts a photon - what is the frequency of the energy of the photon?
added 36 characters in body
Jul
21
revised Atom emitts a photon - what is the frequency of the energy of the photon?
added 673 characters in body
Jul
21
comment Atom emitts a photon - what is the frequency of the energy of the photon?
Maybe this is it. So I will fix the second line to be $\sqrt{ \left( {E_{0~Fe} + \Delta E}\right)^2 + {p_1}^2c^2 } =\sqrt{ {E_{0~Fe}}^2 + {p_2}^2 c^2 }$ and set $p_1=0$ and $p_2=E_\gamma/c$. Here I think it is important to know the difference between $\Delta W=14.4keV$ (difference between exited and ground state) and $E_\gamma$ (energy of an emitted photon). I think this was my mistake. It does sound better now.
Jul
21
comment Atom emitts a photon - what is the frequency of the energy of the photon?
I wrote equation $E_1=E_2$ for the Atom (one object), where $E_1$ is full energy before the recoil and $E_2$ is the full energy after the recoil. Because at the beginning the momentum is $p_1=0$ i know that sum of the momentum after recoil will allso have to be $0$. But after recoil we have a photon and an atom heading in opposite directions - this means that momentum of the atom will have to be the same as the momentum of the photon (so I can say $p_2 = E_\gamma / c$)... I already took momentum conservation into account havent I?
Jul
21
comment Atom emitts a photon - what is the frequency of the energy of the photon?
Well isn't the Lorentz invariant ${E_0}^2 = E^2 - p^2c^2$ so I solved this for full energy $E$ and got: $E^2 = {E_0}^2 + p^2c^2$ then $E = \sqrt{{E_0}^2 + p^2c^2}$ This is what i used on the energy conservation eq. at the beginning (left and right side).
Jul
21
revised Atom emitts a photon - what is the frequency of the energy of the photon?
edited body
Jul
21
asked Atom emitts a photon - what is the frequency of the energy of the photon?
Jul
21
reviewed Approve How can we deduce the relation $m = \frac{m_0}{\sqrt{1-\frac{v^2}{c^2}}}$ between relativistic mass and rest mass in special relativity?