PSR J1748-2446ad is the fastest know pulsar at 716 revolutions per second, what is the limit of rev/s a neutron star can go through before tearing itself apart, and have we recorded any instances? |
- PSR J1748-2446ad is the fastest know pulsar at 716 revolutions per second, what is the limit of rev/s a neutron star can go through before tearing itself apart, and have we recorded any instances?
- Ask Anything Wednesday - Engineering, Mathematics, Computer Science
- When there is an eclipse, why does the earth not become cold for that period?
- Is the LHC beam visible to the naked eye?
- Why do even atomic-numbered elements (hydrogen neglected) seem more abundant?
- What's under the desert?
- Are there any big math discoveries still to be made?
- How fast can a nuclear powerplant shut down safely?
- If you walked in a straight line around a small asteroid long enough, would you eventually increase its spin enough to walk off into space?
- Is it possible to feel pain from strong ionizing radiation?
- Is there a direct connection between the Uncertainty Principle and the Third Law of Thermodynamics?
- What's the point of quantum teleportation, if you need to physically move an entangled particle to the desired end location? Couldn't you simply move the original particle instead?
- Are the veins in a penis symmetrical?
- Do rockets suffer from aerodynamic drag caused by truncated tail?
- Is proton beam radiation more effective than standard radiation for cancer treatment?
- Do red shifted photons lose energy?
- [Math] How exactly is mass points used and when in a problem can you use it?
- Does Moore's Law have a limit?
- How would a compass act in space?
| Posted: 15 Mar 2017 10:21 PM PDT Also, does the size of a pulsar matter much when determining the break-apart speed? [link] [comments]  |
| Ask Anything Wednesday - Engineering, Mathematics, Computer Science Posted: 15 Mar 2017 08:04 AM PDT Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Engineering, Mathematics, Computer Science Do you have a question within these topics you weren't sure was worth submitting? Is something a bit too speculative for a typical /r/AskScience post? No question is too big or small for AAW. In this thread you can ask any science-related question! Things like: "What would happen if...", "How will the future...", "If all the rules for 'X' were different...", "Why does my...". Asking Questions: Please post your question as a top-level response to this, and our team of panellists will be here to answer and discuss your questions. The other topic areas will appear in future Ask Anything Wednesdays, so if you have other questions not covered by this weeks theme please either hold on to it until those topics come around, or go and post over in our sister subreddit /r/AskScienceDiscussion , where every day is Ask Anything Wednesday! Off-theme questions in this post will be removed to try and keep the thread a manageable size for both our readers and panellists. Answering Questions: Please only answer a posted question if you are an expert in the field. The full guidelines for posting responses in AskScience can be found here. In short, this is a moderated subreddit, and responses which do not meet our quality guidelines will be removed. Remember, peer reviewed sources are always appreciated, and anecdotes are absolutely not appropriate. In general if your answer begins with 'I think', or 'I've heard', then it's not suitable for /r/AskScience. If you would like to become a member of the AskScience panel, please refer to the information provided here. Past AskAnythingWednesday posts can be found here. Ask away! [link] [comments]  |
| When there is an eclipse, why does the earth not become cold for that period? Posted: 16 Mar 2017 05:08 AM PDT |
| Is the LHC beam visible to the naked eye? Posted: 15 Mar 2017 08:10 AM PDT If so, what would it look like? A bright, Science-Fictiony energy beam? [link] [comments]  |
| Why do even atomic-numbered elements (hydrogen neglected) seem more abundant? Posted: 16 Mar 2017 03:43 AM PDT In the solar system, neglecting hydrogen, 11 of the next 12 most abundant elements have an even number of protons--with nitrogen being the odd one out. And the bar graph from this page clearly shows a see-sawing pattern preferring even-proton elements as they get heavier. I've read about the Oddo-Harkins rule but it doesn't exactly explain the mechanism. Why is that? [link] [comments]  |
| Posted: 15 Mar 2017 11:14 AM PDT If I were to get a fairly large vacuum cleaner and vacuum up all of the sand in the Sahara desert, what would I find underneath? Rock? Clay? Magma? And how deep does the sand go anyway? [link] [comments]  |
| Are there any big math discoveries still to be made? Posted: 15 Mar 2017 09:35 AM PDT Maybe I worded this wrong. But so many other sciences have big problems waiting to be solved. Physics for example is waiting for some grand unification theory. Biology has thousands of problems waiting to be solved. From cures to diseases to how did life begin. So what about math? Have we pretty much figured it all out? Am I right to even try and compare it with other sciences in that regard? Thanks to anyone who might take the time to answer. [link] [comments]  |
| How fast can a nuclear powerplant shut down safely? Posted: 15 Mar 2017 12:52 PM PDT In a hypothetical scenario there is an impeding catastrophe that will affect the area of the plant. How fast can a nuclear power plant shut down so as to be safe and prevent radiation? [link] [comments]  |
| Posted: 15 Mar 2017 01:59 PM PDT |
| Is it possible to feel pain from strong ionizing radiation? Posted: 15 Mar 2017 12:55 PM PDT Not instant, but around 10 minutes after the exposure, experiencing joint/muscle aches? If there have been some instances where a subject "feels" pain after knowing he or she has been radiated, is it purely psychological? [link] [comments]  |
| Is there a direct connection between the Uncertainty Principle and the Third Law of Thermodynamics? Posted: 15 Mar 2017 09:09 AM PDT I understand that Thermodynamics deals with entire systems. But in the single particle case, if it can never be cooled down to absolute zero, it will always have some vibration/motion. This seems very similar to the Quantum Physics idea that a particle only has a probability to be at a specific range [delta]x. Are these two versions of the same concept? [link] [comments]  |
| Posted: 16 Mar 2017 04:00 AM PDT I just watched minutephysics' video on quantum teleportation. One question I've always had it doesn't answer is: why bother? You need to physically move a bunch of matter to the location you want to teleport to, why not just move the thing you wanted there instead? [link] [comments]  |
| Are the veins in a penis symmetrical? Posted: 15 Mar 2017 04:25 PM PDT |
| Do rockets suffer from aerodynamic drag caused by truncated tail? Posted: 15 Mar 2017 02:56 PM PDT I don't know the right terminology so please let me explain. In car and airplane aerodynamics, engineers have to consider not only aerodynamics on the front-facing side of the vehicle, but also on the back side. The idea is to reduce turbulence and low pressure, which has the effect of "pulling the vehicle back". I imagine this by having a moving object creating a vacuum (low pressure) behind itself, which "sucks in" everything around, including the object itself. Better shapes of the object will allow more air to fill out the vacuum (low pressure) area quicker, which will induce lower "pulling" force on the object. Now the question is, what about rockets? If you look on this picture of the tail of Saturn V, it clearly shows how the rocket body is simply "cut off", or flat, and then the engine nozzles stick out. In my mind such moving body has to create lots of low-pressure-pulling force in the area between the flat rocket bottom and the tips of the nozzles, especially at high speeds. Now obviously it cannot be perfectly aerodynamic as we may need some nozzle gimballing, or have the incoming air cool the nozzles down a bit, or simply vibrations prevent us covering up the engines/nozzles. But such a flat surface simply looks like a beginner's first attempt at rocket design (no offence :) ). Or is that simply ignored due to short time spent in the dense part of the atmosphere? [link] [comments]  |
| Is proton beam radiation more effective than standard radiation for cancer treatment? Posted: 15 Mar 2017 12:59 PM PDT |
| Do red shifted photons lose energy? Posted: 15 Mar 2017 01:01 PM PDT So say there are two hydrogen atoms in the same frame of reference in a vacuum- one in an excited state and one in ground state. The electron in the excited state drops to its ground state and releases a photon. The photon is absorbed by the electron in the other atom and it goes to an excited state. What happens if they are not in the same frame of reference and the first hydrogen atom is moving away from the the second. Since the frequency of the photon is smaller when it reaches the second atom, is there enough energy to excite the electron? If not, where did the energy dissipate? [link] [comments]  |
| [Math] How exactly is mass points used and when in a problem can you use it? Posted: 15 Mar 2017 09:39 PM PDT Additionally, when can you split a single point A up into points of mass A1 and A2 then later add them together? Can a point be split up into more then 2 points? [link] [comments]  |
| Does Moore's Law have a limit? Posted: 15 Mar 2017 12:42 PM PDT Does it predict an ever increasing doubling or is it bound to 'slow down' or even plateau at some point? Why? [link] [comments]  |
| How would a compass act in space? Posted: 14 Mar 2017 10:07 PM PDT What would a magnet act like as you traveled away from earth? Would it continue to point towards the earth's pole or would other magnetic fields take over at some point? [link] [comments]  |
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