Experimental nuclear and particle physicist. These days I'm teaching, but I've spent a lot of time on nucleon structure in fixed target electron scattering and neutrino oscillations using reactors and beam sources.

Been reading Zemansky & Dittman's book on thermodynamics recently. Quote: ``The concept of temperature is rich in interpretations and levels of abstraction.'' Nice.

1h
comment Rigorous proof of Ampère's law from the Biot-Savart law
"Although I have been looking for a rigourous and understandable (by me) proof for more than a month, I have not been able to find, or to produce, one. In fact [...]" If the accepted proofs are eluding you then you may need to repair your preparation. Some ideas are simply very hard without the right grounding, and pretending that everything can be explained in baby language is not going to change that.
1h
comment Is this a good PhD Thesis Topic in General Relativity?
My best suggestion for advice from the assembled masses of Physics SE is to answer a question or two in order to accumulate the rep needed to participate fully in chat and then bring the subject up in the h bar.
4h
answered Alternative Ways to Earn Reputation
8h
comment Sandbox for Proposed Challenges
@JAtkin I abandoned it after thinking over the questions Peter brought up. And then I mostly dropped participating when "real" life and moderating [physics.se] expanded to fill he available time. You are welcome to try to do something with it if you'd like. Good luck.
9h
revised What constitutes an answer to a physics question on this forum?
added 312 characters in body
10h
comment How does one actually use the Einstein field equations?
With great difficulty?
11h
comment Light from Absolute 0
An assumption of instantaneous cooling to absolute zero violated the 3rd law of thermodynamics. It is seriously time for you to quit throwing idea together at random and hoping that they add up to something. Go forth and learn systematically for a while. Find out a little about how notions in physics are connected to one another and how they depend on preconditions. That is to say make yourself part of the audience of this site: "Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics and astronomy."
11h
comment Cold Solid Matter at the End of a Black Hole's Acceleration Disk?
Word soup and pictures of equation soup don't make a good question.
11h
comment Why do we see discrete light spikes coming out from a light source?
Perhaps more direct than Johns link is: physics.stackexchange.com/questions/35935/…
11h
comment De-broglie wavelength
You should read the links that John has given. The "homework" policy is currently construed to apply to a class of problems that are perceived to be homework-like with taking notice of how you can about them.
11h
comment Rest mass of particle of light
BTW--I know that the question asked he is not precisely the same as that asked in the duplicate, but the same understanding is needed to answer both and that duplicate has become are de facto canonical question on photon mass, energy and momentum. You'll find a few additional answer in questions from the "linked" sidebar of the master question.
11h
answered What constitutes an answer to a physics question on this forum?
1d
comment What are these cycles in orbital eccentricity called?
If they are accurate (rather than features of a problem with your simulations), then taken together with some other factors (precession of the equinoxes...) they go by the collective name Milankovitch cycles. That article might break out the individual contributions for you, but I am officially out of my depth.
1d
comment Calculate the Bohr radius of a muonic atom
Possibly useful to you: physics.stackexchange.com/search?q=reduced+mass+is%3Aq
1d
comment If you play more than one music track at once on a computer, does the sound heard get louder?
Nice expansion.
1d
comment Is it common for a university to buy a plane ticket directly?
Only one of the four universities under whose auspices I've traveled did this. But since that was my graduate institution not having to carry the cost of the ticket until I could be reimbursed was a huge advantage.
1d
comment Were there ice-cold whiskey vending machines in the 1950s?
Beer vending machines can be found in Japan at least (well, at least up to 2008 the last time I was in that part of the world, though the government was making an effort to get them out of places where they might encourage drunk-driving).
1d
comment If you play more than one music track at once on a computer, does the sound heard get louder?
@user31782 That's essentially a physiology or cognitive question with a small but important amount of physics input in the form of noticing that the cochlea detects the frequency-space power components of the signal (i.e. it detects the Fourier transform of the time-dependent pressure function).
1d
comment If you play more than one music track at once on a computer, does the sound heard get louder?
This is correct as long as you don't allow the net amplitude to be clipped by the limits of the sound system at any time. But I fear it is so terse as to only be comprehensible to people who could have deduced it for themselves.
1d
comment If you play more than one music track at once on a computer, does the sound heard get louder?
In a lot of ways this is a technology question rather than a physics one. Some might argue that because the sound system is designed correctly you can treat it as two physical sounds sources and analyze it on that basis, but the reliance on design doesn't make me (personally) happy.
1 2 3 4 5