Do Aquatic Animals Yawn? |
- Do Aquatic Animals Yawn?
- Do people who are hypersensitive to, say, sound or touch actually have more acute senses, or are they just more easily upset by them?
- Completely disregarding how impractible and dangerous it would be, if we really tried, how fast could we make a spacecraft fly? Could we reach a meaningful percentage of the speed of light?
- If temperature trends show ~.1C/decade warming, won't we run out of fossil fuels before reaching 2C warming?
- Why is it that the moons gravity is able to direct masses of water in different directions but yet we, ourselves cannot physically feel the affect of the moon's gravity?
- If a force is applied to the top of a ruler in space, does it spin in place or move forward?
- why do seemingly perfect spherical bubbles form in water / liquid?
- Why does gravity cause all objects (regardless of mass) to accelerate equally?
- If we can ever model many-body quantum systems on a quantum computer, is it possible that we may learn more about where the outcome of a measurement comes from?
- When I have a straw in a glass of liquid, hold the top of the straw, then lift the straw out of the glass while still closing the top, why does the liquid stay in the straw until I let go of the top?
- Do annual bonuses increase employee performance?
- Is it possible that an elephant stepped on my foot without breaking it?
- Would isotopes of antimatter atom be the exact same or opposite of regular isotopes?
- Has VY Canis Majoris become a BlackHole "in earth time"? Would this be the closest BlackHole to earth?
- Why are Gravitons considered to have infinite range?
- Are the fundamental charges in the universe arbitrarily labelled?
- Why does integration not work when trying to find the formula of third power polynomials?
- Does high pH water have a lower capacity as a solvent to dissolve more because of the electrolytes and minerals already in the water?
- What would be a viable lubricant to -85F?
- Can somebody explain to me the Dirac sea?
| Posted: 03 Dec 2015 10:54 AM PST |
| Posted: 03 Dec 2015 02:08 PM PST |
| Posted: 04 Dec 2015 04:04 AM PST |
| Posted: 03 Dec 2015 11:14 AM PST I am looking at temperature trends for different data sets RSS/UAH show about .12C/decade warming and GISS/HADCRUT smaller rates. That means it will take 150-200 years before we reach the 2C mark. Is rate expected to increase? Has it increased? What am I missing here? [link] [19 comments]  |
| Posted: 04 Dec 2015 05:37 AM PST |
| If a force is applied to the top of a ruler in space, does it spin in place or move forward? Posted: 03 Dec 2015 10:29 PM PST Lets say that an irresponsible astronaut left a ruler floating in space. If a force was to act on the tip of the ruler, perpendicular to the ruler's lengthwise configuration as to make it spin (adding torque), would it spin in place or spin while moving forward? It would also initially spin on it's center of gravity (the middle) and not act like a lever where the opposite tip stayed stationary (like a door), correct? I assume the same situations would apply to balls in space. [link] [3 comments]  |
| why do seemingly perfect spherical bubbles form in water / liquid? Posted: 03 Dec 2015 10:12 PM PST |
| Why does gravity cause all objects (regardless of mass) to accelerate equally? Posted: 03 Dec 2015 10:15 AM PST I know this sounds dumb and its quite obvious that objects with different masses accelerate due to gravity at the same rate, but why? I would expect gravity to exert a fixed amount force on objects. I might be applying the equation wrong, but if Force = Mass x Acceleration, then each object experiences a different amount of force as they have different masses but equal acceleration. [link] [34 comments]  |
| Posted: 03 Dec 2015 11:28 AM PST I have been reading about decoherence, the hidden measurements interpretation of quantum mechanics, and many-body problems, and I was wondering the following: If we do not yet possess the ability, because of computational limits (I assume), to model many-body quantum systems, is there anything in quantum mechanics to suggest that if we could model those systems, that we may learn something about what happens during a measurement? I understand that quantum mechanics and classical mechanics are both deterministic, but that the transition between the two during decoherence is probabilistic, and I am wondering if we can ever 'improve' on what outcomes we can expect in a given scenario. For instance if you could model a double slit experiment and then run the exact same experiment, would the model have better predictive powers than we currently do? I am not talking about bypassing the Heisenberg Uncertainty Principle or making perfect predictions about the outcome of a measurement, I am just wondering if we might ever be able to gain better predictive powers, for instance whether an electron will be spin up or down, if we can accurately model the system and the environment together during the measurement process. Or, is there something in quantum mechanics that says even with all of that information we would be no better off, or that trying to model complex/macroscopic systems in quantum mechanical terms would lead to less accurate results (particularly the longer the system evolves)? Please note that I don't think that this is about a hidden-variable theory either, which I understand to be saying that our knowledge of quantum mechanics itself is incomplete - I am only wondering whether if we could calculate more of the information that we possess about the process, should that tell us anything new/different? [link] [21 comments]  |
| Posted: 03 Dec 2015 09:34 PM PST |
| Do annual bonuses increase employee performance? Posted: 03 Dec 2015 01:38 PM PST I've read that "pay for performance" can worsen intrinsic motivation and creativity, but it can also improve a company's financial performance. Research papers on this topic rapidly go beyond my layperson understanding of the topic, with lots of apparently contradictory results. So to the best knowledge of science, what's the overall effect of an annual bonus on employee performance? Are there cases clear cases where it is or is not beneficial? [link] [4 comments]  |
| Is it possible that an elephant stepped on my foot without breaking it? Posted: 03 Dec 2015 10:52 AM PST When I was around 8 years old, I went to India. I was at an area where we saw an elephant and was able to ride it. Before being placed on top of the elephant, I remember my foot getting stuck underneath the elephant's front leg. There was some pain but I was able to get my foot out. I didn't tell anyone at the same and when I told my dad a few years later, he said it was impossible since my foot would have been broken. Is my recollection of the event possible/plausible? Or would my foot have been broken if the elephant stepped on it? [link] [13 comments]  |
| Would isotopes of antimatter atom be the exact same or opposite of regular isotopes? Posted: 03 Dec 2015 11:28 AM PST I.e. would anti-deuterium have an extra antineutron or an extra antiproton? [link] [16 comments]  |
| Posted: 03 Dec 2015 11:20 AM PST |
| Why are Gravitons considered to have infinite range? Posted: 03 Dec 2015 09:48 PM PST I've been looking up articles on subatomic particles and on gravity and I'm confused why gravitational force is considered to have infinite range seeing how gravitation force is dependent on the mass of two objects. [link] [3 comments]  |
| Are the fundamental charges in the universe arbitrarily labelled? Posted: 04 Dec 2015 06:27 AM PST Does this question make any sense? I guess it stems from my pondering why electrons are negative. I had always assumed as a kid that the electrical charge flying round a nucleus would be positive. Were the choices to label charges as positive and negative just a choice on a graph of up or down or is there a naming convention and reason that makes something positive or negative? Obviously opposites repel each other but does it matter whether they are negative or positively labelled? Would a mirror universe where every charge is opposite work the same way? [link] [2 comments]  |
| Why does integration not work when trying to find the formula of third power polynomials? Posted: 03 Dec 2015 10:36 PM PST If I give 4 points from a quadratic (3 if you know it is a quadratic), my friend told me that you can use integration as opposed to simultaneous equations to find the original formula. I have not seen proof but i have done examples of my own and seen some and they all work, and the method makes sense. Say the points I give are: (1,9)(2,18)(3,31)(4,48) We take the differences of the y values until they are the same, just like how I was taught to find the order of the polynomial. 1 2 3 4 (X values) 9 18 31 48 (y values) 9 13 17 4 4 Now if i were to graph the last line, its formula would be y=4. If I integrate that, I get the slope for the original formula. y=4x + C. If we substitute several values in (This part seems sketchy to me, using values such as (1.5,9)(2.5,13) etc) we see that C = 3. So the formula is y=4x+3. 1 2 3 4 9 18 31 48 9 13 17 y=4x+3 4 4 y=4 Now if we integrate that once more, we get y=2x2 + 3x + C. Once again, substitute values in and we get C=4, yielding the equation y=2x2 + 3x + 4, the original formula of the points. However, it does not work with cubic functions. Of the cubic y=x4 , we can get points (1,1)(2,8)(3,27)(4,64). Assume we are given that it is a cubic. 1 2 3 4 1 8 27 64 7 19 37 12 18 Integrating through I get y=6x, y=3x2 + C...solve for C...and I hit a discrepancy. I think this might be something to do with the lack of symmetry or the sketchy taking of 1.5 values, but I haven't been able to find a reason as to why it happens. Google has failed me, I cannot find where my friend got this from. Your thoughts? EDIT: Formatting [link] [2 comments]  |
| Posted: 03 Dec 2015 11:26 AM PST Just a random question. I have some water with a pH of 8.8 and had the thought of using to make things like powdered gatorade, coffee, tea, etc. [link] [4 comments]  |
| What would be a viable lubricant to -85F? Posted: 03 Dec 2015 09:49 PM PST There is a viral video for a gun lubricant, Liberty Lube, that claims it functions to -85F. The video demonstrates it squeezing from the dispenser after freezing in dry ice, while synthetic motor oils and other lubricants are solid. What could this possibly be made of? [link] [5 comments]  |
| Can somebody explain to me the Dirac sea? Posted: 03 Dec 2015 08:48 AM PST I understand some of it, but I still am confused about some big pieces that my quantum physics book did not go into detail on. One of my most burning questions is how a hole in the sea can actually manifest as an anti-particle. Also, if it disagrees with gravity (as I've been lead to believe) then why do we not try to find a better theory? What is our modern interpretation of this theory? [link] [5 comments]  |
| You are subscribed to email updates from AskScience: Got Questions? Get Answers.. To stop receiving these emails, you may unsubscribe now. | Email delivery powered by Google |
| Google Inc., 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States | |
No comments:
Post a Comment