1,724 reputation
725
bio website
location Mezőkövesd, Hungary
age 26
visits member for 3 years, 2 months
seen 5 hours ago

I mostly self learn Physics, I don't have a degree.

I have a good grasp on:

  • physics we learned at high school.
  • A-level physics topics.
  • Special relativity.
  • Maxwell equations.

Topics I get the idea but still struggle with the mathematics:

  • General relativity. (have a good grasp on the Riemann curvature tensor, but yet to get a good intuitive grasp the Ricci tensor and stress-energy tensor).
  • Quantum mechanics. (I tend to stick to wave-functions with or without asterisk and operators, the asymmetric braket notation still look too alien to me.)

Topic I barely scratched the surface on:

  • Quantum field theory. (I think I got the idea of the Fock space and the annihilation and creation operators, but still need a lot of work understand how and why it works.)

1d
asked Do two bodies spinning about the same axis in the opposite direction repel each other?
Apr
19
answered Is there a way to create an artificial solar eclipse?
Apr
11
asked What does Ricci tensor do with two vectors?
Apr
11
awarded  Autobiographer
Mar
10
awarded  Popular Question
Mar
1
comment Is it foolish to distinguish between covariant and contravariant vectors?
I think that number there should be $0.01$ and not $0.001$...
Feb
28
comment Is it possible to use hot cloudy water as a cloud chamber?
I'm sure I saw it in the vapor above it.
Feb
28
revised Is it possible to use hot cloudy water as a cloud chamber?
added 21 characters in body
Feb
27
asked Is it possible to use hot cloudy water as a cloud chamber?
Feb
19
awarded  Yearling
Feb
18
comment Is anti-matter matter going backwards in time?
Just a note: If Freymann's view (a single electron bouncing back and forth in time) is true, then we would have exactly the same amount of electrons and positrons... Don't we?
Feb
14
asked Double slit experiment in the Heisenberg picture
Feb
11
asked Does Bell's theorem rule out the possiblity that measurements are completely determined by events in the past light cone?
Feb
11
comment If tachyons existed, would we notice them?
You can create space-like separated events by putting the trigger in the past light cone of them. The simplest case is flashing a light in the room. The event where the two light rays reach two opposite walls and scatter from them is spacelike separated.
Feb
11
revised If tachyons existed, would we notice them?
edited body
Feb
11
asked If tachyons existed, would we notice them?
Feb
5
answered What happens after the collapse of a wavefunction?
Jan
28
comment How can we prove that a photon is absorbed only once?
"generally have buttons that produce one photon" there are single photon sources, those are important in quantum computing and quantum encryptions. So I think we already have a source that can spit a photon when you press a button.
Jan
26
asked How much energy and momentum is carried by a mechanical wave?
Jan
25
accepted How does a rotating object cause frame dragging?