atrettel

25 ms·

271.
by atrettel 6y ago
Thermodynamics as a subject is taught in two entirely different traditions, the engineering tradition and the physics tradition. I've taken courses in both traditions and I personally find that physics tradition explains a lot more. W
272.
by atrettel 6y ago
I have looked into this a bit, but the issue appears to be that MPI is not a library per se but a standard interface to more underlying function calls. Different implementations of MPI are in effect different libraries using the same API,
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by atrettel 6y ago
This is an interesting article. I have often wondered if there would be benefits to porting scientific simulation codes to more modern languages. In the end I've always reluctantly stayed in C or Fortran for scientific simulations.
274.
by atrettel 6y ago
No, that is fairy common, as far as I know. The only issue with that is that some universities will not lend out dissertations via interlibrary loan. In those cases, the only way to read a dissertation is to visit the university. This is
275.
by atrettel 6y ago
The only ancient technical report that I am looking for currently is Mark Morkovin's 1960 AGARD conference paper titled "The structure of supersonic turbulent boundary layers". This was presented at the April 1960 Boundary L
276.
by atrettel 6y ago
I am not surprised about the effort it took to find a copy of Ritchie's dissertation. Dissertations tend to be difficult to find if they are not already listed on WorldCat or in ProQuest. But the museum used the best method in this c
277.
by atrettel 6y ago
It would also be much more open if it required all articles with a University of California coauthor to be open access by default. If the agreement only applies to articles with UC corresponding authors, it severely limits the scope of the
278.
by atrettel 6y ago
I agree with this basic idea, though I understand why some people have a difficult time seeing it. VI and Vim are advertised as "modal" editors, but in fact they are just editors that accept a rather terse command language. I ori
279.
by atrettel 6y ago
I think a lot of people go through a life cycle of Computer Modern. I originally was indifferent, but once I learned LaTeX I used it since it was the default and it signaled to people that I knew LaTeX. Now I prefer Utopia/Fourier in
280.
by atrettel 6y ago
CSV is human readable and writable, but that is only part of the advantage of CSV. Its simple format is great as an archival format. It's the plain text of data formats. Decades pass and you can still read it without much of an issu
281.
by atrettel 6y ago
Fortran has some aspects of a standard library already, though compared to other languages the shelves are rather bare, let's say. It wasn't until Fortran 2003 that there was a standard way to get command line arguments. Before
282.
by atrettel 6y ago
I'm writing new Fortran right now, actually. I know a lot of people who still write Fortran, though all of them work in scientific or engineering fields. I view Fortran as only good for number crunching, but for that purpose it is dif
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by atrettel 6y ago
> Pure mathematics departments for at least the past maybe 80 years often look down on numerical analysis, statistics, engineering, and natural science, and adopt a position that education of students should be optimized in the direction
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by atrettel 7y ago
I'm reminded of the engineer's triangle here: "Good, fast, cheap. Pick two." The problem with a lot of Soviet design was that they always had to pick cheap since there were often shortages of resources. Their designs
285.
by atrettel 7y ago
I think that the security issue needs more attention than the author gives it. Config files are often shared and not rigorously checked, especially if they are very long. Arbitrary code execution is a real security risk that should not be
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by atrettel 7y ago
Propeller-driven aircraft perform best at subsonic speeds (slower than the speed of sound). This is because the blade tips of the propellers approach the speed of sound at faster speeds, and this greatly increases the drag on the propeller
287.
by atrettel 7y ago
I think your mentor strikes the right balance between awareness and originality. My criticism of Landau's idea is that it's a great way to make you think you have an original idea when you actually don't. Only a detailed li
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by atrettel 7y ago
I agree completely. There always has been too much to read, and the best strategy remains to read what you can while recognizing that you may be missing something. I make every effort to find as much related literature as possible but I a
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by atrettel 7y ago
This result applies to turbulent flows. Not all flows are turbulent, and the Navier-Stokes equations should describe laminar, transitional, and turbulent flows (3 major regimes of fluid flow). Transitional flows are not yet fully turbulen
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by atrettel 7y ago
I work in computational fluid dynamics. Fortran is very much alive and being updated. The bigger issue, as I see it, is the adoption of newer features by current programmers. I know many people who program in modern Fortran (the 2003 and
291.
by atrettel 7y ago
> They tell people to use public transit, but fail to recognize that it takes 2 to 3 hours to get anywhere useful with it. I used to live in Los Angeles (Westside) and I found this to be true. The bus system has excellent coverage but t