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location London, United Kingdom
age 42
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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

You can find me on

Some code of mine, mostly old :-)


Jan
12
comment Intensity of light
What do you mean by "generate more power"?
Jan
11
comment What happens when you heat vodka in a microwave?
As a side note, salted water does not boil at the same temperature anyways.
Jan
11
comment Effect on mass of Earth if it stops revolving around Sun
I've tried to fix the English of this question, but could use some input from the author.
Jan
11
comment What is the “foamy space” hypothesis that has been debunked recently?
@Dilaton I believe you, but tags must be useful for people looking for this page: since the article talks about interpretations, the tags should follow, as to help people reading the article find this page, quantum-gravity could stay, as well.
Jan
11
comment What is the “foamy space” hypothesis that has been debunked recently?
The article specifically mentions quantum interpretations, that's why I used it (the experiment may be incorrectly reported, however the question is still about interpretations, imho)
Jan
10
comment Are probability-preserving variations of QT with respect to the Born rule mathematically possible?
If you take a rule and you replace it with something not equivalent by definition you won't get the same result. One can simply multiply all probability distribution by some normalised function and obtain something that makes different predictions... wrong ones. :-)
Jan
10
comment What happens when you heat vodka in a microwave?
@PaulJ.Gans actually that's incorrect, ethanol boils at 78.37... if you click on the value it will take you to chemistry.SE where someone actually calculated that for us.
Jan
9
comment Does photon possesses no time to cover any arbitrary distance?
You can't talk about SR without specifying reference frames. Times and distances are different in different frames - that's the whole point of SR...
Jan
9
comment What happens when you heat vodka in a microwave?
I assume you mean alcohol and not vodka above. Considering it's a real mixture, and the two components are not separated, I do not think it's even possible that one boils but not the other.
Jan
9
comment What happens when you heat vodka in a microwave?
The results need to be reproduced by independent parties. Ergo, you must have a party.
Jan
9
comment Apparent paradox in equation of continuity
@KaziarafatAhmed What do you mean? I've shown that at every position the equation of continuity is respected. You seem to think that $V_0$ should be for some reason the same as $V_1$, but that's simply a wrong assumption.
Jan
9
comment What happens when you heat vodka in a microwave?
What have you tried? :-)
Jan
9
comment Inclusion of information about external particles to calculate scattering amplitudes
Can you review the link, please? It seems to be talking about other matters at 1:18.
Jan
5
comment Matrix manipulation for Dirac matrices
What do you mean by anything short important idea can do this quickly.?
Jan
4
comment Lightest flying solid material
This is a dyi question...
Jan
4
comment Is it possible to separate the poles of a magnet?
I disagree with your assertion that "Magnetic monopoles certainly exist.", whereas you now say "Magnetic monopoles have been predicted". I have no problem with the second statement, but your answer states the first.
Jan
3
comment How to determine whether a large container is air-tight?
Besides the general discussion, this particular question is also too localised, IMO. It does not address a general problem but a specific circumstance of the OP.
Dec
30
comment How are constraint forces represented in Lagrangian mechanics?
@hwlau if you look at the original revision they are not asking about terminology; furthermore the OP posted a (now deleted) comment-in-an-answer specifically to complain about Qmechanic's edit. For this reason (and this reason only) I am reverting to my edit. Please flag for mod attention if you disagree with the edit and let them assess the situation since they can see all the deleted bits and bobs.
Dec
29
comment Is the earth expanding?
This is just a creationist crackpot theory, i think.
Dec
29
comment frames of reference
This looks like a homework assignment...