Could a smaller star get pulled into the gravitational pull of a larger star and be stuck in its orbit much like a planet? |
- Could a smaller star get pulled into the gravitational pull of a larger star and be stuck in its orbit much like a planet?
- By how much is the Earth's magnetic field decaying yearly?
- Why does the right hand rule works on a lot of things? Is this a coincidence?
- Will the curvature of my spoon's edge always be able to match the side of my yogurt cup so I get a clean scrape?
- Is there a spectrum to psychopathy as there is to autism or are you either a psychopath or not one at all?
- [Physics] Do bullets fired from rifled barrels eventually curve one way or the other due to their rotation?
- If a magnetic radio isotope within a strong magnetic field decays into a non magnetic element, where does the energy from the field go?
- Does one's perception of time change the rate at which the body ages?
- Why can I reverse "dead" batteries in my remote and get months of extra life out of them?
- If I was well enough insulated, could I survive on Pluto just using my body's heat?
- Naked mole rats are highly social animals, and since they are not endothermic, their colonies sleep communally together. Since this is a recipe for plagues, what pathogens are known to afflict them?
- Why would a thinner layer of compound mixture be better at the start of column chromatography?
- Can a given function be expressed as another unique function? If so how does one find these overlaps?
- How can electrons have an energy of 18 keV in Tritium beta decay if their mass is already 511 keV?
- What would happen to a small CD player in zero-g?
- [chemistry] Are there any acids that work by absorbing hydroxide rather than donating protons?
- Since space-time is curved, will travelling far enough return you to your point of origin?
- Does collagen have a tertiary structure?
- What would we experience if a gamma ray burst were to strike Earth?
- Using nuclear fusion, how much fuel would it take to accelerate to half light speed and then come to a stop? Specific scenario from "The Physics of Star Trek"
- Does energy have mass?
- Can PTSD permanently alter your body's physiological reactions to daily stressors (i.e. affect the nervous system to make someone hyper-aware of physical sensations beyond what a person would typically perceive)?
| Posted: 20 Mar 2016 05:47 AM PDT |
| By how much is the Earth's magnetic field decaying yearly? Posted: 19 Mar 2016 07:33 PM PDT |
| Why does the right hand rule works on a lot of things? Is this a coincidence? Posted: 20 Mar 2016 02:32 AM PDT Im talking about angular momentum, magnetic field due to current, magnetic filed in a solenoid. [link] [comments]  |
| Posted: 19 Mar 2016 09:11 PM PDT So imagine this (some of you may have noticed it before): You're eating your favorite yogurt, and you get to the end. So you're scraping every bit out you can with your spoon. As you're scraping the sides, you notice you can tilt your spoon in such a way that the edge matches the curvature of the truncated cone (that might be a made up term, correct me if I'm wrong). With this match, you can cleanly scrape all the yogurt [in a pass of a certain thickness] off the sides of the cup. So my question: Is this always the case? Can every spoon match every yogurt cup at some angle? Also, does this have anything to do with parabolas being conic sections? Edit(s): in [brackets] Was bored today/many many days as work... Thanks! [link] [comments]  |
| Posted: 19 Mar 2016 08:01 PM PDT |
| Posted: 19 Mar 2016 08:20 AM PDT I am aware that various environmental factors, such as temperature, wind, elevation, etc. could all affect a bullet's path, but does the rifling itself also have an impact on the trajectory? [link] [comments]  |
| Posted: 20 Mar 2016 02:35 AM PDT Also, as a follow on, does the presence of the field alter the chances of or outcome of decay? [link] [comments]  |
| Does one's perception of time change the rate at which the body ages? Posted: 19 Mar 2016 07:04 PM PDT If someone was on a planet orbiting a black hole, and someone was on Earth, would their bodies age at the same rate or would they age at different rates? [link] [comments]  |
| Why can I reverse "dead" batteries in my remote and get months of extra life out of them? Posted: 19 Mar 2016 10:18 AM PDT when the batteries in my remote control die, I swap the positions and my remote works for a couple months, then I switch them again and get a couple more months. I have done this about five times with the same two AA batteries. [link] [comments]  |
| If I was well enough insulated, could I survive on Pluto just using my body's heat? Posted: 19 Mar 2016 11:54 AM PDT Like in a 6 foot bubble of the best down or aerogel or something? [link] [comments]  |
| Posted: 19 Mar 2016 06:44 AM PDT |
| Why would a thinner layer of compound mixture be better at the start of column chromatography? Posted: 19 Mar 2016 08:33 AM PDT I was told that it had something to do with the effective separation of the components in that mixture but i could not reason it out with myself. [link] [comments]  |
| Posted: 19 Mar 2016 01:34 PM PDT I was wondering since there is an infinite amount of functions possible, there must be certain intervals in completely different functions that are almost identical. For example, are there polynomials (in terms of x) that are identical/similar to ln(x), ex , sin(x), cos (x), etc.? How are these found...by chance? By the way, I am a high school student so consider that when explaining your responses. Thanks [link] [comments]  |
| How can electrons have an energy of 18 keV in Tritium beta decay if their mass is already 511 keV? Posted: 20 Mar 2016 03:56 AM PDT Isn't the minimum energy of the electron the energy from its mass, E = mc2 ? [link] [comments]  |
| What would happen to a small CD player in zero-g? Posted: 19 Mar 2016 10:15 AM PDT If I were to power up a portable CD player in zero-g, would it start to spin in the opposite direction to the CD? [link] [comments]  |
| [chemistry] Are there any acids that work by absorbing hydroxide rather than donating protons? Posted: 19 Mar 2016 05:25 PM PDT |
| Since space-time is curved, will travelling far enough return you to your point of origin? Posted: 19 Mar 2016 02:13 PM PDT |
| Does collagen have a tertiary structure? Posted: 19 Mar 2016 10:26 AM PDT From my understanding, fibrous collagen's primary structure is Gly-X-Y, where X is often Pro and Y Hyp. Its secondary structure is a narrow left-handed helix. Three strands of this polypeptide helix come together to form the right-handed helix tropocollagen, which is a quaternary structure as the strands are separate polypeptides. Is this accurate? If so, is there a definite tertiary structure for the molecule? Can it be distinguished from the secondary structure? [link] [comments]  |
| What would we experience if a gamma ray burst were to strike Earth? Posted: 19 Mar 2016 04:22 AM PDT Im talking about a worst case scenario, if we were directly hit from nearby. I know we would be killed pretty quickly. Would we all just drop dead instantly? Would we see anything unusual happening like trees suddenly igniting or some other extreme immediate change in the physical world? Would it effectively sterilize the planet and kill every last living cell? And if so ... would everything just remain exactly as is since there's no bacteria to break down anything? Would the ocean floor be affected? [link] [comments]  |
| Posted: 19 Mar 2016 04:55 PM PDT Hi everyone, So, maybe I'm missing something really simple here, but I'll ask at the risk of looking like a moron anyways. I just started reading "The Physics of Star Trek." On page 25, it says:
So far so good. But then he goes on to say:
And this is where he lost me. Why would it be 81 X 81 instead of 81 x 2? Wouldn't it be 81 times the mass of the ship to start once, and 81 times the mass of the ship to stop once? I thought maybe it was because of relative mass (object becomes heavier the closer it gets to light speed) but the calculator I found for that didn't seem to bear that out. Apologies if I made a fundamental math error here or something. Just not getting this. [link] [comments]  |
| Posted: 19 Mar 2016 11:17 AM PDT I remember when I visited CERN with my school, they told us about how the Hydrogen cores that accelerate while on the LHC can have almost infinite mass, due to them moving at nearly the speed of light. So I'd like to have a quick answer, please. [link] [comments]  |
| Posted: 19 Mar 2016 07:02 AM PDT Anxiety forums typically spring up when querying about randomized physical sensations, particularly in the head. Would these be psychosomatic or actual sensations a "normal" person just wouldn't notice? Because their nervous system isn't always on alert? [link] [comments]  |
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