If the great pacific garbage patch WAS compacted together, approximately how big would it be? |
- If the great pacific garbage patch WAS compacted together, approximately how big would it be?
- Does a person suffering from amnesia retain the personality traits formed from/during the experiences they can no longer remember?
- [Engineering] Why are the SABRE-engines on the Skylon spaceplane shaped like a bent tube, with the apparent thrust vector not aligned with the forward direction of the craft?
- Can high amount of concentrated electromagnetic waves warp space like gravity does?
- How do we have elements on the periodic table that we dont know the form of in certain temperatures? Are these just theoretical and we have never actually physically seen it?
- If I'm on the interior surface of a rotating cylinder in space, I'll feel something that I could interpret as "gravity". Is it possible to spin a cylinder fast enough to create an "event horizon" on the inside?
- In the double slit experiment, how are individual protons/electrons fired?
- Is there a limit to how far an electron can be from an atom?
- Ask Anything Wednesday - Economics, Political Science, Linguistics, Anthropology
- Is there a scientific consensus on how bad climate change is projected to be?
- What would be "shelf life" of plutonium warhead? (please read text before answer)
- What is the energy cost per bit manipulation in reversible and irreversible processors?
- Why do the planets all seem to have the same inclination of orbit around our sun? Why are there no polar orbits or other inclinations?
- Does a moving Charge get affected by its electric and magnetic field?
- How does a Housefly survive after continuously bashing its self against hard surfaces?
- Why do muscles get sore the day after exercise, not straight away?
- For materials scientists, does reinforcing by composite coating has any explanations to wear rate?
- Yanar dag, is there no way to put out the fire? Are we keeping it lit just for nostalgia?
- What is causing this "fairy ring" on this volcanic island?
- What are current predictions for the future of the Amazon Rainforest? Is the forest as a whole at risk from human activity?
- What will be the future of continents?
- If cat's are covered in fur, and don't pant or sweat. How do they regulate there temperature when they fall asleep in the sun or on a heat vent?
- Everything in space spins it seems, so how could an enormous cloud of spinning dust and gas ever condense to form a star?
| If the great pacific garbage patch WAS compacted together, approximately how big would it be? Posted: 24 Apr 2018 11:41 AM PDT Would that actually show up on google earth, or would it be too small? [link] [comments]  |
| Posted: 24 Apr 2018 08:45 PM PDT |
| Posted: 25 Apr 2018 06:24 AM PDT All depictions of the Skylon single stage to orbit space plane show engines with a strange shape, where both the direction of the air intake and the direction of the nozzles are not aligned with the length axis of the fuselage. This gives the engines a bent kind of macaroni-shaped appearance. An example of this can be found here. I have read some texts describing the different parts of the SABRE engines and how they differ from rocket engines or ram jets, but I find nothing that could motivate the strange engine shape, different from any other depiction of rocket- or jet engines. Why is the engine shaped this way? Would it not cause unnecessary friction both from the outside air and air passing through the engine? Would you not prefer having the air intakes and the direction of thrust aligned with the length axis of the craft? Or is this simply and artists depiction of the Skylon, and it has no real purpose in the actual engines? [link] [comments]  |
| Can high amount of concentrated electromagnetic waves warp space like gravity does? Posted: 24 Apr 2018 08:51 AM PDT |
| Posted: 25 Apr 2018 03:00 AM PDT |
| Posted: 24 Apr 2018 02:50 PM PDT Basically, ignoring material constraints, is it theoretically possible to make it so that centrifugal force creates an "escape velocity" greater than C? Also, would light coming from that surface appear redshifted in some reference frames but not in others? Basically, what's the relativistic interpretation of pseudoforces like this? [link] [comments]  |
| In the double slit experiment, how are individual protons/electrons fired? Posted: 24 Apr 2018 09:52 PM PDT I understand the conundrum of the results of the double slit experiment (or rather like everyone else, I don't understand them) and it is absolutely amazing. My question is how, realistically, are individual photons/electrons fired one at a time? Also what are the differences in the experiment for either type of particle? [link] [comments]  |
| Is there a limit to how far an electron can be from an atom? Posted: 24 Apr 2018 08:33 PM PDT I'm in the 9th grade and recently started on quantum chemistry. My teacher told me that hypothetically, an electron could be at varying levels when located near a proton. Let's assume the element is hydrogen for the sake of simplicity. Each time we want to take the electron of hydrogen up a level, we can expose it to light. At first, we expose it to red, then slowly progress up the spectrum into gamma rays. Now this hypothetically could extend forever according to pretty much all sources that I've found, but there is one problem nagging me. At a certain point, the frequency of the wave would be so high that the distance between peak to peak would be a Plank length. First of all, now it's impossible to get the electron to move further away now, because it's impossible to make the peak to peak distance less than the Plank length and it would also be impossible to produce this amount of energy, so does that mean that this is the true maximum distance an electron can travel from an atom? Second, could anyone approximate how far away this would be (I've heard that Schrödinger's equation is useful for this, but I haven't learned that yet.) [link] [comments]  |
| Ask Anything Wednesday - Economics, Political Science, Linguistics, Anthropology Posted: 25 Apr 2018 08:12 AM PDT Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Economics, Political Science, Linguistics, Anthropology 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]  |
| Is there a scientific consensus on how bad climate change is projected to be? Posted: 25 Apr 2018 07:20 AM PDT I know something like 98% percent of scientists say climate change is happening and it's being pushed along by humans emitting greenhouse gasses. That doesn't say how bad it is going to be and I know that predictions are often wrong but you can say the planet is warming with relatively minor effects on the planet. [link] [comments]  |
| What would be "shelf life" of plutonium warhead? (please read text before answer) Posted: 25 Apr 2018 03:17 AM PDT I thought it'd be same with half life of whatever its made of, but after some thinking, I realized that a warhead needs to be over supercritical concentruation what can sustain chain reaction. Otherwize explosion can't happen. (solids doesn't compressable) and only reason it won't expolde right now is neutrons leaked in process. This means whenever natural decay happens, a chain reaction will follow (while not expolde becase neutrons escaped) and that reaction will greatly accelerate decay speed. (until it can't sustain chain reaction, then its unable to act as warhead.) so I'm now not sure how long this will take. [link] [comments]  |
| What is the energy cost per bit manipulation in reversible and irreversible processors? Posted: 25 Apr 2018 03:05 AM PDT Hi guys, I'm doctorate student in computer Engineering. In one of my classes we discussed the computation cost per bit in irreversible and reversible computation models. And I'm trying to find out energy cost per bit manipulation in a modern CPU in terms of wattage. Also I want to ask that why a reversible CPU being built using Fredkin Reversible gates seems infeasible and what would be energy cost per bit in such a reversible processor. Thanks [link] [comments]  |
| Posted: 24 Apr 2018 11:11 AM PDT |
| Does a moving Charge get affected by its electric and magnetic field? Posted: 24 Apr 2018 10:14 PM PDT Usually when solving these types of questions, I will see any number of particles in a system with a point P as a reference point. This P point is used for the direction of a magnetic field (r-hat). The same applies for the electric field. What about when your point P is a moving charge next to another moving charge? If P is the charge itself, then the electric field formula kq/r2 will net an infinitely large value as the distance r is 0. The magnetic field won't have an r-hat value for its own magnetic field either because the point P is the charge itself. This leads me to believe that a moving charge is not affected by its electric and magnetic fields. is this correct for an undergraduate college physics class? [link] [comments]  |
| How does a Housefly survive after continuously bashing its self against hard surfaces? Posted: 24 Apr 2018 05:40 PM PDT |
| Why do muscles get sore the day after exercise, not straight away? Posted: 24 Apr 2018 10:35 PM PDT The damage to the muscles is done during the exercise, not after it, so why doesn't it ache right after? [link] [comments]  |
| For materials scientists, does reinforcing by composite coating has any explanations to wear rate? Posted: 25 Apr 2018 03:29 AM PDT Could grain size, or volume fraction of reinforcement nanoparticles have an effect on wear rate of the coated steel? Increase it or decrease it. [link] [comments]  |
| Yanar dag, is there no way to put out the fire? Are we keeping it lit just for nostalgia? Posted: 25 Apr 2018 03:21 AM PDT |
| What is causing this "fairy ring" on this volcanic island? Posted: 24 Apr 2018 05:30 PM PDT |
| Posted: 24 Apr 2018 05:32 PM PDT |
| What will be the future of continents? Posted: 24 Apr 2018 08:21 AM PDT Will Africa collide as everybody says,and could India break apart from Asia? [link] [comments]  |
| Posted: 24 Apr 2018 11:23 AM PDT First off. I know cat's pant if they get hot enought but they don't while they are sleeping. Moving on, how do they keep from over heating when they are sleep for hours in hot places? Do they have a lowered body temperature while sleeping? In general cats don't seem to mind heat so are they just built for higher temps? If so how? what adaptations do they have to deal with heat? Thank you for looking at my question and I look forward to finding the answer! [link] [comments]  |
| Posted: 24 Apr 2018 11:30 AM PDT It seems the angular momentum of a gas cloud would prevent the cloud from condensing, unless most gas clouds in fact do NOT have significant spin. [link] [comments]  |
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