Alex1167623
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Why in professional spectroscopes diffraction gratings are used instead of prisms?
Accepted answer
10 votes

Just compare the resolution of the two: Prism depending on n, there is no good material n>1.7 (besides diamond) depending on base length if you use a equilateral triangle have to use more than one to ...

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Wyckoff positions and lattice coordinations
5 votes

I highly recommend the free Vesta program. You allready found THE International tables, but it is still a nightmare to calculate all positions by hand and put everything in reciprocal space, ...

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Why does iteratively solving the Hartree-Fock equations result in convergence?
5 votes

There is no guaranteed solution to get convergence on the ground state. But there are really good algorithms used like DIIS. And as always you need a good starting point to not get stuck at a local ...

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Relationship between nuclear spin and nuclear magnetic moment?
4 votes

From the magnetic moment $$\mathbf{\mu}=\mathbf{\mu_L}+ \mathbf{\mu_S}=(g_l \mathbf{L}+g_s\mathbf{S})\frac{\mu_N}{\hbar}\tag1$$ take the scalar product with $\bf{J}$ $$\mathbf{\mu_J} ·\mathbf{J}=(1/2(...

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Line width of green DPSS laser
Accepted answer
3 votes

You may build an interferometer as you split it through a mirror and your optical pathlengths differ < 1 cm and you want to do no serious science. However cheap green laser pointers are not ideal: ...

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Why is Mosely screening in heavy atom K-shell 1 unit?
1 votes

I doubt that it is exactly 1. See Effective_nuclear_charge for references therein. The Clementi tables goes up to Radon and uses Slater Type orbitals. You can calculate it on your own with a quantum ...

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