[Physics] What makes the continuous stream of bubbles from a single spot when you pour champagne/highly carbonated beverages?

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• [Physics] What makes the continuous stream of bubbles from a single spot when you pour champagne/highly carbonated beverages?
• What happens when my phone reaches 100% battery but is still charging?
• Does fatigue or hunger affect how we perceive other people's physical attributes?
• Do the atoms and/or electrons in a wall *feel* anything when a radio wave passes through them? i.e. do they move at all?
• Why are there 360 degrees in a circle?
• Why are self-diagnoses of Gender Dysphoria/Gender Identity Disorder more accurate than self-diagnoses for other conditions?
• Does the Dunning-Kruger have an impact on asessing self-evalutation?
• Direction of a photon?
• How did engineers manage to do calculations and modelling pre GUI PCs?
• Have human sexual organs changed with evolution? Or stayed the same?
• Why aren't there lightning or thunderstorms in winter?
• [Physics] What is the amplitude of a light wave?
• What is the transition like between the atmosphere and the interior of the ice giants (Uranus/Neptune) like? How does temperature change in the deep atmosphere?
• Why can a drag coefficient only be found experimentally?
• Is it possible to give non-magnetic substances magnetic properties?
• Is it possible that not only space is expanding, but time as well?
• Do parasites serve an ecological function? I know a lot of insects that we consider pests are actually important in the food chain (like ants and spiders) but do things like fleas and ticks actually contribute anything to their environment or do they only sap energy from their hosts?
• Why does mint feel cold?
• What would happen if an extension cord was wired to itself on the female end then plugged in?
• What makes meat taste gamey?
• Are there any environmental downsides to solar panels?
• Are there any fluids whose viscosity doesn't change with temperature?

[Physics] What makes the continuous stream of bubbles from a single spot when you pour champagne/highly carbonated beverages? Posted: 16 Jul 2017 03:11 PM PDT I just poured a glass and often they just keep coming from a single spot for a very long time. submitted by /u/Thesource674 [link] [comments]

What happens when my phone reaches 100% battery but is still charging? Posted: 16 Jul 2017 03:10 PM PDT Follow up question: what happens if I have a charger plugged into the wall and switched on but it isn't connected to anything? submitted by /u/AronBhalla [link] [comments]

Does fatigue or hunger affect how we perceive other people's physical attributes? Posted: 17 Jul 2017 07:00 AM PDT For example if we're tired, do we find people more attractive? submitted by /u/captmomo [link] [comments]

Do the atoms and/or electrons in a wall *feel* anything when a radio wave passes through them? i.e. do they move at all? Posted: 16 Jul 2017 05:36 PM PDT submitted by /u/ch1214ch [link] [comments]

Why are there 360 degrees in a circle? Posted: 17 Jul 2017 06:16 AM PDT Why not 100 or 500? Why 360? submitted by /u/MegaSnowster [link] [comments]

Why are self-diagnoses of Gender Dysphoria/Gender Identity Disorder more accurate than self-diagnoses for other conditions? Posted: 17 Jul 2017 04:35 AM PDT In this discussion /u/HiddenStill says that almost nobody changes their mind after starting their transition. Why are we so much better in identifying whether or not we are transgender, than if we have bipolar, antisocial personality disorder or a condition like that (based on the fact that psychology students are explicitly told not to self-diagnose)? submitted by /u/Jes_Cam [link] [comments]

Does the Dunning-Kruger have an impact on asessing self-evalutation? Posted: 17 Jul 2017 03:59 AM PDT submitted by /u/kristoffernolgren [link] [comments]

Direction of a photon? Posted: 17 Jul 2017 01:57 AM PDT Imagine you have an atom that gets excited and releases a photon. How is the direction of this photon decided and how is the energy transferred? If it is actually a wave that emits from the atom A (imagine an expanding shell of a sphere with energy of 1 quanta ) at some point this sphere interacts with another atom (B) to excite that. I've got some crazy ideas which are probably not sensible but it's fun to take guesses based on limited knowledge :) All the energy in that sphere emitted by A is now absorbed by B so not other atoms in any direction will be excited by that shell. This seems bizarre since I'm not sure how a directional laser can work in this setup. All atoms in the universe have a chance of being excited by that photon shell but based on probability where the closer it is to A the more likely the chance. The probability is also multiplied by the crossproduct of the A->B vector and the vector the photon wave is emitted from. This would seem to explain how lasers can work and distant starlight but would probably mean time isn't discrete but more an integral between observations? Would also seem indicate everything is simply connected with time delays rather than light actually travelling through space. Would love someone to help better understand what is going on here... submitted by /u/5tu [link] [comments]

How did engineers manage to do calculations and modelling pre GUI PCs? Posted: 17 Jul 2017 02:54 AM PDT Hi! I was just watching the SR 71 speed check video and it reminded me of an episode in "The Americans" in which soviet scientists want to get a hand on the design (The cross-section, I think it was called?) of a plane the US is designing. My question is: How did scientists and engineers at said time (Late 70's, early 80's) model air/turbulences/pressure without the GUI we have today? I know from a friend who is studying mech.eng that software like MathLab allows you to simulate, via FEM, said situations. I saw one of his homeworks and it was a steel beam with different colors showing different pressure points and where it would break/bend. However, without this visualization, how do you read the results? Is it like a partial derivative? Ie: You have numbers for each "slice" in the digital mock-up? I have tried to find an answer for this before writing the question but either there is none or I missed the right keywords. If you already know a link explaining this, I would be more than glad to read it. submitted by /u/Megustoelbertolucci [link] [comments]

Have human sexual organs changed with evolution? Or stayed the same? Posted: 16 Jul 2017 11:26 PM PDT submitted by /u/ThePhantomPain84 [link] [comments]

Why aren't there lightning or thunderstorms in winter? Posted: 17 Jul 2017 07:31 AM PDT submitted by /u/mysticalfire117 [link] [comments]

[Physics] What is the amplitude of a light wave? Posted: 17 Jul 2017 06:58 AM PDT So the amplitude of a sound wave is the difference in pressure caused by the sound wave, and the intensity of the wave is just the power of the wave. For the case of light, the intensity is equivalent to the number of photons per second, but what is the physical representation of its amplitude? submitted by /u/lalaland296 [link] [comments]

What is the transition like between the atmosphere and the interior of the ice giants (Uranus/Neptune) like? How does temperature change in the deep atmosphere? Posted: 16 Jul 2017 05:33 PM PDT submitted by /u/ClF3FTW [link] [comments]

Why can a drag coefficient only be found experimentally? Posted: 16 Jul 2017 08:15 PM PDT Why is it only found this way? Why can't we derive it from things such as ratios of the cross-sectional area of the object in motion? submitted by /u/robothecorncob [link] [comments]

Is it possible to give non-magnetic substances magnetic properties? Posted: 17 Jul 2017 01:42 AM PDT submitted by /u/The_1st_Name_I_Chose [link] [comments]

Is it possible that not only space is expanding, but time as well? Posted: 16 Jul 2017 06:16 AM PDT Could you provide reasons or sources, if you think just space is expanding and time is unable to? Related questions: If we can't reach some space regions because space expanding, is it possible we also can't reach some time regions because of time expanding (e.g. the end of universe)? Could we measure time expansion? e.g by observing far away objects like Cosmic Microwave Background, distant galaxies, or pulsars? submitted by /u/sheerun [link] [comments]

Do parasites serve an ecological function? I know a lot of insects that we consider pests are actually important in the food chain (like ants and spiders) but do things like fleas and ticks actually contribute anything to their environment or do they only sap energy from their hosts? Posted: 16 Jul 2017 08:01 PM PDT submitted by /u/irlingStarcher [link] [comments]

Why does mint feel cold? Posted: 16 Jul 2017 09:19 PM PDT submitted by /u/khullabaloo [link] [comments]

What would happen if an extension cord was wired to itself on the female end then plugged in? Posted: 16 Jul 2017 02:16 PM PDT I had to test some chandeliers for my dad and when I was done with the extension cord I used I was just messing around with it and started to wonder. Visual for reference submitted by /u/scroobiusmac3 [link] [comments]

What makes meat taste gamey? Posted: 16 Jul 2017 10:01 PM PDT I hate gamey meat. I struggle eating lamb, and I can't even get near goat just from the smell alone. I generally don't think of myself as a picky eater, so I'm wondering if there's like one specific chemical or something in gamey meat that I'm extra sensitive to. I was reading an article that compared gamey meat to the taste of liver. I don't think this applies to me, though, because I love the taste of liver. Gamey meat has a distinct, singular taste that I can't quite describe but I recognize it instantly if I eat or smell something gamey. submitted by /u/heavyLobster [link] [comments]

Are there any environmental downsides to solar panels? Posted: 16 Jul 2017 08:08 PM PDT Title! Do solar panels have any negative affects? submitted by /u/Dark_magician_girl [link] [comments]

Are there any fluids whose viscosity doesn't change with temperature? Posted: 16 Jul 2017 06:24 AM PDT I've just started to learn fluid dynamics, and was surprised to find that liquid viscosity decreases with increasing temperature, while gas viscosity increases with increasing temperature. It makes sense, but it makes me wonder if anything has a viscosity that doesn't vary, or has a maximum/minimum viscosity at a certain temperature. It looks like superfluids would have a constant viscosity? What about other substances with non-zero viscosity? submitted by /u/994phij [link] [comments]

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