meta user
network profile
| bio | website | ForTheScience.org |
|---|---|---|
| location | Amsterdam, The Netherlands | |
| age | 36 | |
| visits | member for | 2 years, 6 months |
| seen | May 15 at 15:52 | |
| stats | profile views | 152 |
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Oct 6 |
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A telescope with a bunch of small mirrors Also, the larger is the parabolic structure (so the larger is the telescope), the less the deviation would be important, so for the limit of a very, very large telescope, a flat one would be a reasonable approximation. Right ? |
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Oct 6 |
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A telescope with a bunch of small mirrors ok, but if the mirrors are flat, what effect would this deviation have ? less resolution, coma effects, chromatism, or would the telescope would just plain not work (optically, it would not make a focused, observable image) |
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Jun 17 |
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What if our Sun were located in the middle of a globular cluster? The view? damn epic: on one side the rest of the cluster, on the other side, the full Milky Way. I'd give my life to see it once with my eyes. |
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Jun 17 |
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Telescopes to avoid as a beginner? If you can't keep a steady hand with the binocular it means that the multiplication factor is too high. You can find mounts, but as a beginner you don't need high magnification. You need instead to learn your way around the sky, and be able to spot features (like nebulas or prominent galaxies) that are hard to see with the naked eye, but are invaluable for a more advanced initial exploration. @jonathan |
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Jun 11 |
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Are the Voyager probes still sending us a signal ? it's incredible to see how an object launched tens of years ago just traversed a bit more than half of one lightday of space. Gives an idea of the chances of getting anywhere close to traversing lightyears... |
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Jun 5 |
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Is the length of the day increasing? the title does not really match the content. I was expecting a different discussion. |
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Jun 2 |
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What open-source n-body codes are available and what are their features? CW does not exist anymore |
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Jun 2 |
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A method to estimate the relative magnitude of a star using nearby stars it was a historical, rather approximate method. Of course there are better methods today, but I fail to remember the name, and I was curious if someone remember it. |
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Jun 1 |
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What is exactly a Dobsonian, and what are the differences when compared with Schmidt-Cassegrain or Newtonian? did you build it yourself ? |
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May 31 |
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Would a car tow rope withhold an adult person? Remember a very important point. Climbing ropes are made so that they stretch and elastically absorb the stretch. This is, of course, because if you fall, a rigid rope would bring you to a sudden stop and likely break your body from the snap. Tow ropes are rigid, so your question may hold an intrinsic danger which I consider important to point out. |
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Feb 19 |
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Decompressing gas whilst driving a turbine - where does the energy come from? actually, to make the thing even more efficient, they could open a refrigerated storage facility in the same building. |
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Feb 3 |
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Why is quicksilver (mercury) liquid at room temperature? @Georg: I thought it was the layperson name. I always call it mercury, but I assumed non-scientific people may search for quicksilver on google. |
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Jan 25 |
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How does the Kinect device work? @Georg : it appears so |
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Jan 12 |
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How to describe a well defined “zero moment” in time Yes, but UTC does not define a unique, unambiguous and exactly traceable "zero" in its scale. |
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Jan 11 |
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How to describe a well defined “zero moment” in time @David: I don't think there are tons of methods. I think that, apart from those I gave, there may be another one or two I am not aware of. |
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Jan 11 |
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How to describe a well defined “zero moment” in time @David : exactly. |
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Nov 18 |
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Simulate a physical impact of objects made of finite, small elements @dmckee : you are absolutely right |
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Nov 17 |
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Simulate a physical impact of objects made of finite, small elements ok, but I'm not asking about a scientific distribution of python. I don't want to reimplement body dynamics from scratch. |
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Nov 17 |
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Simulate a physical impact of objects made of finite, small elements @mbq: do you know a good and easy one, possibly usable via python ? |
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Nov 16 |
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Meaning and application of convolution or deconvolution in physical sciences @Sklivvz: CW is outdated and likely to be removed soon from SE sites as well. See Stackoverflow meta. I also prompt reading "bad subjective/good subjective" on joel's blog. I apologize not to provide links, but I raised this many times in other SEs and I am bored of repeating myself... sorry. this is my fault. |
