skymandr

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62 reputation
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bio website gitorious.org/~skymandr
location Gothenburg, Sweden
age 30
visits member for 7 months
seen May 8 at 10:56
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I'm a phd student in fusion plasma physics, who enjoys programming as a creative outlet. Originally a c-programmer (well, basic before that, but still), I nowadays mostly write python.


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Jan
14
 answered Does magnetic geometry determine the scaling of a Polywell fusor?
Jan
11
 awarded  Excavator
Jan
11
 revised Does magnetic geometry determine the scaling of a Polywell fusor?
It is clear from the description of the problem, that "magnetic geometry" is intended, and that "tokamak geometry" was used because the appropriate term didn't occur to the writer when they wrote the question.
Jan
11
 suggested suggested edit on Does magnetic geometry determine the scaling of a Polywell fusor?
Jan
11
 revised What amount of force is needed to topple a person?
Edited to fix some spelling, nomenclature, and grammar.
Jan
11
 suggested suggested edit on What amount of force is needed to topple a person?
Jan
11
 awarded  Analytical
Jan
11
 awarded  Supporter
Jan
10
 awarded  Editor
Jan
10
 revised How does sound travel in space?
Corrected spelling.
Jan
10
 suggested suggested edit on How does sound travel in space?
Oct
19
 answered Role of unit vectors in cylindrical coordinates
Oct
19
 comment Qualitative discussion about entropy and disorder
(I too pressed too quickly...) This is what is called effect of having to small boxes is in practical situations referred to as the "coarse graining" problem. This article has a nice discussion of it, and of what it means for the entropy/disorder concept: [link}(arxiv.org/abs/quant-ph/0403034).
Oct
19
 comment Qualitative discussion about entropy and disorder
Yes, there is only one such case. The surprise comes first, when we look at the system from a distance, going from looking at individual particles to ensembles of particles. What would be a typical mixture of blue and red, for a particular set of imaginary boxes? If we make the boxes sufficiently small, the entropy does indeed vanish with out statistics.
Oct
19
 answered Qualitative discussion about entropy and disorder
Oct
19
 awarded  Teacher
Oct
19
 awarded  Autobiographer
Oct
19
 answered Is physics very dependent on equipment?