Have "Oort Clouds" been observed or measured around other stars? |
- Have "Oort Clouds" been observed or measured around other stars?
- Can generalized anxiety spread throughout a group of individuals?
- Do Tachyons Exist?
- If subatomic particles make up everything, yet take up no space. How can everything around me take up space?
- Why do you need vitamin D to metabolise calcium and other minerals?
- Does the legality of virtual child pornography affect the number of incidences of sex offending against children?
- Can ants recognize each other on an individual basis using pheromones?
- How can TV networks and radio stations tell how many viewers/listeners they have at a given moment?
- Can rainfall amplify sky noise? (Jet noise more specifically)
- What symmetries exist in a hydrogen atom?
- Why can a complex number be used in Physics?
- Why is dicarbon monoxide not triangular?
- Is a 'flying saucer' (as far as we know) an aeronautically valid way to fly?
- How far removed from a nucleus can an electron be before we can say it is no longer associated with that nucleus?
- Supposing that wealth is redistributed, would inflation still occur even though no wealth is added and why?
- Why does venous constriction cause an increase in venous return when it is increasing resistance which should decrease flow?
- Is quantum entanglement "communication" with the particles in separate Faraday cages possible?
- How can caffeine be calorie free but still give me energy?
- Given enough time how deep could a river erode?
- Could we ever truly know if Pi was a rational number?
- Will plasma overtake the LHC? If so, what's the advantage of spending $13.25B to find the higgs boson early?
- What is the mathematical proof of the lift equation used to determine the lift produced by an aerofoil?
| Have "Oort Clouds" been observed or measured around other stars? Posted: 24 Mar 2016 07:15 PM PDT |
| Can generalized anxiety spread throughout a group of individuals? Posted: 24 Mar 2016 09:17 PM PDT What brought up the question/ the parameters. My friends and I were all together tonight (4 of us). We were doing what we usually do, sitting around playing poker and listening to music, when everyone myself included got the urge to leave, so we go on a walk. I can tell one of my friends is getting distressed, so I suggest we get something to eat. While there I got the very eerie and intense feeling that someone was watching me. My one friend just seems outright depressed at this point. At the end if the night one if the other friends tells me that something just did not feel right at all that night, unrelated to my or the other friend's situation, as we didn't mention it to him. So, I was wondering if it was merely a coincidence, it if there is some psychological reason this may have happened. I would be intrigued to know. Thanks in advance [link] [comments]  |
| Posted: 24 Mar 2016 06:50 PM PDT |
| Posted: 24 Mar 2016 08:38 AM PDT |
| Why do you need vitamin D to metabolise calcium and other minerals? Posted: 24 Mar 2016 08:45 PM PDT I've heard one of the best ways to die slowly is to deprive yourself of sunlight for a long time. You end up with low testosterone, thinning hair, weight (fat) gain, increased risk of osteoporosis, heart problems, poor sleep from abnormal circadian rhythm, increased risk of diabetes, no libido, depression…it's horrible. Why is this? edit: May have been better to under Biology [link] [comments]  |
| Posted: 24 Mar 2016 07:14 PM PDT I know virtual child pornography is a very touchy subject. In certain areas in the world, like the UK and Canada, it is completely illegal. Australia apparently goes further by banning pornography of women with small breasts. In other areas like the US (Ashcroft vs Free Speech Coalition) and Japan, it is legal, or at the very least in a legal grey area. Is there any causation between the legality of it and the number of incidences of offenses? I've heard people theorize that having it legal will increase the number of offences, or decrease the number of offenses, but what are the actual statistics? [link] [comments]  |
| Can ants recognize each other on an individual basis using pheromones? Posted: 24 Mar 2016 08:11 PM PDT |
| How can TV networks and radio stations tell how many viewers/listeners they have at a given moment? Posted: 24 Mar 2016 07:24 PM PDT |
| Can rainfall amplify sky noise? (Jet noise more specifically) Posted: 24 Mar 2016 07:58 PM PDT Raining in Ohio now. Hearing jets noticeably louder than on clear nights. Not near low or varied flight paths. Wondering if pressure or downward movement of rain is somehow at play. [link] [comments]  |
| What symmetries exist in a hydrogen atom? Posted: 24 Mar 2016 11:17 PM PDT Another thread earlier today brought up the planetary model of a hydrogen atom, which would have an axis about which an electron is orbiting at some radius. Does the solution to the Dirac equation for a universe with a hydrogen atom have a similarly privileged axis? A set of such axes? [link] [comments]  |
| Why can a complex number be used in Physics? Posted: 24 Mar 2016 08:11 AM PDT I'm currently trying to understand how to use complex numbers and with that how to calculate with i. I think I now understand the basic math behind it, but I'm still confused how a number, that in some kind of way doesn't exist, is able to describe something like Oscillation in Physics. Or to better describe my question: Why do we need something imaginary to describe a progress that happens in the "real" world? Edit: Thanks everyone for helping and answering. Special thanks to /u/functor7 :) [link] [comments]  |
| Why is dicarbon monoxide not triangular? Posted: 24 Mar 2016 04:14 PM PDT Looking at the diagram of dicarbon monoxide, it would seem that two triple-bonded carbons each with a single bond to the oxygen molecule in a triangle would be a more equilibrated structure. Why then does it form a straight molecule? [link] [comments]  |
| Is a 'flying saucer' (as far as we know) an aeronautically valid way to fly? Posted: 24 Mar 2016 09:10 PM PDT |
| Posted: 24 Mar 2016 04:34 PM PDT Earlier there was a post about electrons occurring probabilistically around a nucleus. One poster shared an image of an electron's position around this nucleus. My question is, could an electron be meters or kilometers away from a nucleus and still be considered part of that atom? What defines how far it might go? [link] [comments]  |
| Posted: 24 Mar 2016 08:08 PM PDT |
| Posted: 24 Mar 2016 04:30 PM PDT So flow=delta pressure/resistance. vasoconstriction increases resistance so flow should decrease. But i keep reading that vasoconstriction increases end diastolic volume. Is there a difference between vasoconstriction and decreasing venous compliance? Is this the point that I am missing? Thanks, any help is appreciated. [link] [comments]  |
| Is quantum entanglement "communication" with the particles in separate Faraday cages possible? Posted: 24 Mar 2016 01:45 PM PDT Disclaimer: I know very little about either Faraday cages or entanglement. Here's the scenario, you have to entangled particles in separate rooms, but the rooms themselves are Faraday cages. When you change the spin on one particle, will the other know or will it be blocked by the Faraday cage? [link] [comments]  |
| How can caffeine be calorie free but still give me energy? Posted: 24 Mar 2016 11:12 AM PDT A calorie is a unit of energy, and caffeine gives me energy, so how can it be calorie free? [link] [comments]  |
| Given enough time how deep could a river erode? Posted: 24 Mar 2016 11:29 AM PDT *additionally given an infinite amount of time could all land mass on the planet be eroded? [link] [comments]  |
| Could we ever truly know if Pi was a rational number? Posted: 24 Mar 2016 06:49 PM PDT Even if we measure Pi to repeat all of its digits say 10 times, would we then be able to say that it was a rational number? Because since, to the best of our knowledge, Pi has an infinite number of digits arranged in an infinite number of ways, at some point in the infinitely long chain of digits, Pi will repeat itself 10 times. So even if we found that Pi did repeat itself eventually, how could we know that after those repetitions it didn't then carry on being non-repeating? [link] [comments]  |
| Posted: 24 Mar 2016 01:37 PM PDT Why didn't we just wait until particle accelerators are 1/10 the cost? What do we actually gain in the long run? [link] [comments]  |
| Posted: 24 Mar 2016 11:58 AM PDT The lift equation is L=Cl A 1/2 ρ v2 I understand why lift is produced by an aerofoil, I was wondering the proof behind it. I originally thought that Bernoulli's equation 1/2 ρ v2 = K-P However the closest I have got to is A 1/2 ρ v2 =K-P Is there a way to derive the lift equation without calculus? Or if there isn't, how would you prove the equation? [link] [comments]  |
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