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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 :-)


Jun
25
comment Cylinderception. Rotation
The (implicit) missing constraint is that the inner cylinder does not slide (so a 1m rotation in the outer cylinder circumference must correspond to a 1m rotation of the inner cylinder circumference)
Mar
26
comment How can it be that the beginning universe had a high temperature and a low entropy at the same time?
I agree, what I meant is that you should probably distinguish between what is obvious to you or a competent physicist and what is obvious to the masses. You are not giving enough context in the sentence to disambiguate. From a physical standpoint your explanation does make it obvious, but your explanation is not theirs.
Mar
25
comment How can it be that the beginning universe had a high temperature and a low entropy at the same time?
@RonMaimon "Davies's explanation is obviously correct", the idea might be correct, but it's not "obviously" so, since by definition if it were obviously correct people would simply agree with it. I know you probably meant "obviously to me", but it reads like "obviously for anyone".
Jan
20
comment Tesla's theory of gravity
@Skyler a theory which assumes an aether after it's been experimentally disproven is very different: it's experimentally wrong. :-)
May
3
comment Superluminal neutrinos
AnnaV I've removed your edits (you may want to make them an answer maybe?)
Jan
20
comment Can a room resonate at a frequency lower than the principal frequency?
en.wikipedia.org/wiki/Missing_fundamental
Nov
10
comment Details of the new solutions to the three-body problem
I don't think this question is trying to solve a specific problem at the moment: it reads like "let's talk about this, it's interesting!". It would be great if the OP could restrict it to a specific question they are interested about instead of a general "getting-to-know-you" question. The latter type is explicitly discouraged here.
Aug
21
comment How is the double slit experiment modeled in contemporary physical theories?
Wow - this is exactly the kind of answer I wanted. Thanks.
Jul
5
comment Is the Mendeleev table explained in quantum mechanics?
@SergeiAkbarov David Z.
Jul
5
comment Is the Mendeleev table explained in quantum mechanics?
@SergeiAkbarov I am a Stack Exchange developer, not a mod, but I do have mod powers. The comments were removed by a community moderator. I do not know explicitly why he did that.
Jul
5
comment Is the Mendeleev table explained in quantum mechanics?
Sorry about the ninja change. I simply rectified the tone.
Jul
5
comment Is the Mendeleev table explained in quantum mechanics?
I am not the one asserting that statement. I am asserting that whomever says is doable, should provide proof - so basically I am agreeing with you. I don't expect you to agree that it's doable without proof. I am asserting that Lubos needs to provide proof that it's doable before asserting what he says. While I can speculate that it's very likely that QM can explain away chemistry eventually, it clearly doesn't do that if the calculations are unfeasible.
Jul
5
comment Is the Mendeleev table explained in quantum mechanics?
I don't understand your comment. I am not saying its done. I agree its doable in principle, but it's not done afaik. The calculations are still too complex.
Jul
2
comment What experiment would disprove string theory?
@dimension10 It's a very good approximation, but it's qualitatively completely wrong. Gravity does not work at a distance.
Jun
30
comment What experiment would disprove string theory?
Honestly, more of a few of these points are completely irrelevant to the question, because they don't apply to string theory as an extension of currently proven theories. The question wants to know something specific about ST. I do concur on some of your other points though. The second part of the answer is just your (wrong) opinion. Newtonian gravity was hard to disprove for a long time (much longer than GR or ST), yet it was wrong. So "hard to disprove" doesn't tell us anything about correctness.
Jun
22
comment Could entropy explain dark energy?
The idea that light gets slower because of latency in a grid we live in doesn' t make any sense. Latency is ultimately caused by the speed of light, thus the reasoning is completely circular.
Jun
21
comment Superconductor: What form of paramters (like London penetration depth) to use?
@Oaoa sure, but the answer does not explain anything.
Apr
17
comment Which was first, energy or matter in the creation of our universe?
@Manishearth certainly, but the question is not on the difference of the two :-)
Apr
17
comment Which was first, energy or matter in the creation of our universe?
This is a purely philosophical question.
Apr
7
comment Navier-Stokes system
Can you restrict this to a single answerable question?