meta user
network profile
| bio | website | inspirehep.net/… |
|---|---|---|
| location | Duchy of Grand Fenwick | |
| age | 42 | |
| visits | member for | 2 years, 6 months |
| seen | 1 hour ago | |
| stats | profile views | 3,166 |
Experimental particle physicist. These days I'm doing neutrinos.
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2d |
revised |
Why does kinetic energy increase quadratically, not linearly, with speed? strip out selfpromotion |
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2d |
revised |
Can general relativity be completely described as a field in a flat space? Remove meta discussion aimed at the mods. |
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May 18 |
comment |
How can I determine whether the mass of an object is evenly distributed? @AlexSu As I said in the comments on the main question the ringing spectrum would be different when struck. I don't know of a off-the-shelf piece of software to work the problem for you but the problem is not terribly difficult. |
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May 17 |
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How can I determine whether the mass of an object is evenly distributed? Come to think of it, if you have some perfect examples to use for comparison, the ringing behavior under a well defined impact is powerful test that can be done with quite simple tools. A repeatable drop mallet and a PC with good microphone might be enough... |
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May 17 |
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How can I determine whether the mass of an object is evenly distributed? @BenCrowell Well, ultrasound would detect the difference in may example, but does Alex's "typically lab equipment" include ultrasound? On the other hand, if the ideal object rings nicely when hit by a mallet my construction is probably detectable that way. |
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May 17 |
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How can I determine whether the mass of an object is evenly distributed? In less symmetric arrangements the near field gravitational effects could differ, but this being a malicious case, I've made it maximally easy for me and maximally hard for Alex. Bhawhawhawhaha! ::dons turban with point in the middle:: |
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May 17 |
revised |
How can I determine whether the mass of an object is evenly distributed? added 33 characters in body |
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May 17 |
answered | How can I determine whether the mass of an object is evenly distributed? |
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May 17 |
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Are Dark Energy, Dark matter invented concepts to cover up our lack of understanding? Are you implying that there is something wrong with giving a name to observed anomalies? Are you implying that you have a better set of suggestions for the (copious and varied) data? In principle there are some potential good questions hidden within this rant, but (1) there are more than one of them, (2) they are all duplicates and (3) I can't be bothered to try to sort them out. |
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May 17 |
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How can I determine whether the mass of an object is evenly distributed? I think this is very difficult if you admit pathological or malicious cases. Pipe-fitters and shipbuilders and the like make heavy use of x-ray and gamma-ray imaging, sonic imaging and other "non-destructive testing" techniques. It's a big field in it's own right. |
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May 17 |
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How can I determine whether the mass of an object is evenly distributed? Doesn't really address any of the hard cases. |
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May 17 |
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Interpreting the results You do know how long ... you said the TDC intervals were $10\ \mu s$ each, and you choose how to group them. And @Lagerbaer is right because you want an answer in time units you should have the data in time units. |
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May 17 |
revised |
Interpreting the results edited tags |
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May 17 |
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Interpreting the results "and got the data. It's text file with 8190 numbers" You really, really should say what the data represents! If you don't understand that, then you don't understand the experiment. |
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May 17 |
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How do we simulate Nuclear explosion? Out FAQ actually list "Some kinds of questions should not be asked here [...] Computational questions If your question is about writing a simulation or other program, and it concerns the algorithms, execution, or presentation of the results (rather than the underlying physics), it is probably more appropriate at Computational Science." That said, this topic is too big for a single question on any Stack Exchange site. |
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May 17 |
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Prove that the position operator is $\hat{x} = i\hbar \frac{d}{{dp}}$ in the momentum representation You seem to have a mistake in your markup that is preventing some of your math from rendering. |
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May 17 |
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Prove that the position operator is $\hat{x} = i\hbar \frac{d}{{dp}}$ in the momentum representation edited tags |
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May 17 |
revised |
Heat deposition at optical focus in a clear medium edited body |
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May 17 |
answered | Heat deposition at optical focus in a clear medium |
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May 17 |
reviewed | Edit suggested edit on Heat deposition at optical focus in a clear medium |
