KF Gauss's user avatar
KF Gauss's user avatar
KF Gauss's user avatar
KF Gauss
  • Member for 10 years, 9 months
  • Last seen this week
  • Cambridge, MA
81 votes

How do I experimentally measure the surface area of a rock?

21 votes
Accepted

Why no proton microscopes? Proton diffraction; or proton scattering experiments? Proton crystallography?

19 votes

Reverse of diffraction

15 votes
Accepted

Limit on how many photons can hit a surface

15 votes
Accepted

Why do we even need RF cavities to accelerate particles?

9 votes

What is the minimum number of metal atoms necessary to make a mirror?

9 votes
Accepted

What colour is an electron?

9 votes

Why aren't particles constantly "measured" by the whole universe?

8 votes
Accepted

Why does a transition between 2 $s$-orbitals work for cesium's clock transition?

8 votes

Why are magnetic monopoles "incompatible" with quantum mechanics?

8 votes

Do superconducting materials have "zero" work function?

7 votes

Do hadrons have color moments?

7 votes

The difference between optical phonons and acoustic phonons in terms of energy absorption

6 votes

Why can't the density difference between the liquid and solid be an appropriate order parameter for liquid-to-solid transition?

6 votes

Thermal conductivity of superconducting material

6 votes

Why does diamond-graphite phase digram not contain a critical point?

6 votes

Why don't we have a "Cooper pair" of two holes in a superconductor?

6 votes
Accepted

How does the wavefunction inherit the symmetries from the Hamiltonian?

6 votes
Accepted

Is number of photons undefined for a classical EM wave?

6 votes
Accepted

Evading the $J=0$ to $J'=0$ forbidden selection rule?

5 votes
Accepted

Are electrostatic forces enough to trap charged particles?

5 votes

How is the Geometric Phase measured in the experiment?

5 votes
Accepted

Is there a three-body exclusive interaction?

5 votes

What is QED about "Cavity QED"?

5 votes
Accepted

Does phononic "Superconductivity" exist?

5 votes
Accepted

Matsubara Field Theory - what does imaginary time $\tau$ in $G(\tau,\mathbf{x})$ mean?

4 votes
Accepted

Are Type -II Dirac Fermions "true" particles that are not accounted for in the Standard Model?

4 votes
Accepted

Where does Huygens–Fresnel principle follow from?

4 votes

Ohm's law in metals

4 votes
Accepted

Is the Compton effect observed during regular x-ray diffraction?

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