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Stack Overflow Valued Associate

  • Contributor since September 15th 2008
  • Skeptics Moderator from February 2011 to March 2013
  • Core dev since March 2013

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Dec
23
comment Find magnetic scalar potential for superconducting sphere
Whilst this may theoretically answer the question, it would be preferable to include the essential parts of the answer here, and provide the link for reference.
Dec
9
comment Terminology for opposite null lines
If your answer is "there is no name", then you should say so clearly - if you don't know then this should be a comment, really :-)
Dec
9
comment Physical intuition for higher order derivatives
Derivatives don't yield position, really :-)
Dec
9
comment Physical intuition for higher order derivatives
While this is a good explanation of derivatives and Taylor series, it does not give the physical interpretation which is what the OP is asking.
Dec
9
comment Superconductor: What form of paramters (like London penetration depth) to use?
This does not provide an answer to the question. To critique or request clarification from an author, leave a comment below their post.
Dec
9
comment Are black hole states completely mixed?
This does not provide an answer to the question. To critique or request clarification from an author, leave a comment below their post - you can always comment on your own posts, and once you have sufficient reputation you will be able to comment on any post.
Dec
9
comment Gauge pressure vs. absolute pressure?
This does not provide an answer to the question. To critique or request clarification from an author, leave a comment below their post - you can always comment on your own posts, and once you have sufficient reputation you will be able to comment on any post.
Dec
9
comment What is a general definition of impedance?
This does not provide an answer to the question. To critique or request clarification from an author, leave a comment below their post - you can always comment on your own posts, and once you have sufficient reputation you will be able to comment on any post.
Dec
9
comment Conservation of Charge and Method of Images
You may want to ask a specific question here, and provide a link to "Griffith". As it stands, it's not really answerable.
Dec
9
comment Terminology for opposite null lines
You may want to update your question to use null geodesics as it seems to be the general term.
Dec
9
comment Gravity near surface of a large body
Answer here: Gauss' law for gravity
Dec
9
comment Does glass get stronger the longer its under water?
@DavidZaslavsky it should be up to the OP, really. The answers would be cleaned apart from the top one.
Dec
8
comment Does glass get stronger the longer its under water?
May be more appropriate for Skeptics
Dec
8
comment Maxwell's Correction to Ampere's Law
Can you be more specific? You spend a lot of time explaining the parts you do understand, but are not very clear in what you need to know...
Dec
8
comment Why are Navier-Stokes equations needed?
Why would we need that much air to have turbulence? You should mention the minimum amount where NS equations are relevant.
Nov
13
comment Vacuum energy and perpetual motion
Maybe it's worth noting that the "spacetime regions that are very small" are actually galaxy size :-)
Apr
15
comment Age of universe estimates
@ipavlic I wouldn't be so sure: a lot of algebra and analysis have extremely close ties with geometry - e.g. you can calculate the equation of the line joining any two points via algebra. You can find such a line via a limit and so on... Thus, there would be counterexamples to proven theorems such that R is complete etc.
Apr
11
comment Age of universe estimates
I haven't thought this throug but is it possible that (eventually) changing physical laws "disprove" conservation of energy because of noether's theorem?
Apr
11
comment Age of universe estimates
@RonMaimon one could say it's "as reasonable as YEC" - which was precisely my point. The tricky bit is explaining to the OP how unreasonable that is :-)
Apr
10
comment Is the EmDrive, or “Relativity Drive” possible?
This belongs on Physics and it's very unlikely to get a decent answer here, in my opinion. Do you want me to migrate?