When they repave a road, where do they send the old asphalt and what is its environmental fate? |
- When they repave a road, where do they send the old asphalt and what is its environmental fate?
- We know that people have the ability to have a "perfect pitch" with their hearing. Is there such phenomena with other senses? If not, what is so special about hearing?
- Special Relativity: If an object accelerates at a constant rate, does the progressively increasing time dilation cause an asymptote for the moving objects time?
- How does light frequency work on medium interchange?
- Can you feel very strong radiation?
- What does it mean if a wave function equals 1, independent of position (x)?
- How did they take this picture (link in text) of the sun without the ridiculous intensity of light obscuring the image?
- Why do people's urine come out at different strengths?
- If UV light is invisible, why do UV LEDs (on blacklights etc.) have that unique violety-blue colour?
- What is missing from the theoretical model of physics that prevents us from replicating everything as a simulation? (something along the lines of the matrix)
- What's at the bottom of the ocean?
- Why does a neutron star collision gamma ray burst last only seconds?
- Do species which exhibit sexual dimorphism also exhibit higher degrees of behavioral difference between sexes?
- What is the current state of light based computing? What are the problems holding us back?
- What does the mexican hat have to do with higgs field?
- Could someone explain the purpose of the ideal gas law (PV=nRT) to me?
- What is the effect of gravity on an ideal gas?
- Why/how do single nucleotide mutations and errors occur? Wouldn't a miss pair be energetically and electrically unstable?
- How do eyes adapt when you place tinted goggles/glasses over them?
- Are There Ancient Temples In North America?
- Does cold work cause tin pest?
| When they repave a road, where do they send the old asphalt and what is its environmental fate? Posted: 14 Feb 2017 05:20 AM PST |
| Posted: 13 Feb 2017 06:12 PM PST |
| Posted: 13 Feb 2017 05:17 PM PST So, I was looking at what would happen as an object accelerated at a constant rate - say, 300 km/s2. From what it would appear from my math, the object would experience increasing levels of time dilation (from the perspective a stationary observer). A system of (relatively) stationary observers would watch the clock on this accelerating object, and would record slower and slower increments of time. It looks like this would create an asymptote, or a point in time that the moving object will never reach. So two questions: 1) Is my math correct here? Will this object accelerating at 300 km/s 2 approach a time that it will never actually reach in my frame? 2) If so, I'm having trouble interpreting the results. In order for the stationary frame to not be "special", the moving object needs to be able to potentially reach any time within its future... but doesn't this mean there is no corresponding X,Y,Z coordinate that this object will exist in when the clock passes the time I've calculated as the limit? Wouldn't this mean that this moving object cannot exist in my universe at that time? Either way, where the heck is it at that time? It seems like this would create a contradiction.... [link] [comments]  |
| How does light frequency work on medium interchange? Posted: 14 Feb 2017 02:50 AM PST Hi I'm a chemistry trained teacher tackling a senior physics class. I have a good general knowledge of all science and have studied physics at university. However a question has stumped me regarding light waves. The textbook question asks what would the frequency be for violet light (420nm) as it passes through window glass, refractive index given as 1.51. When calculating the answer I adjusted the speed of light through glass then used v=f*lambda formula to calculate the frequency. However the text book answer has used the speed of light as 3 x 108. After quick research I found something stating the frequency would stay the same crossing the interface but the wavelength and speed change proportionally meaning you can simply calculate the frequency using the speed of light through air/vacuum. So what is this magic? The answers I found didn't explain it well enough or too well. [link] [comments]  |
| Can you feel very strong radiation? Posted: 14 Feb 2017 12:53 AM PST Hello scientists I read about a thing called the Elephants Foot, it's from the Chernobyl disaster. It is said that 300 seconds of exposure to its radiation would mean certain death after a few days shortly after the meltdown. Its radiation has weakened, but still is very dangerous, but I was wondering if you would feel the radiation if you stood next to it shortly after the meltdown, and if so what it would feel like? [link] [comments]  |
| What does it mean if a wave function equals 1, independent of position (x)? Posted: 14 Feb 2017 04:33 AM PST I have been looking at wave functions on MIT's YouTube channel (I'm not studying a course, or anything) and there's one thing that seems so weird. If you take the rootnorm of a wave function eikx you get the probability which is in this case 1. I've gotten that through my own calculations and they confirm it in the MIT lecture. However, my interpretation is that, whatever position (x-value) you enter you get 1, and therefore all the positions in the universe have probability of finding the particle with 100% success rate. It doesn't matter where you look, because the probability is suddenly independent of the position, and even stranger, is always 1. But that doesn't make sense!! In the lecture they just say that there's an even probability everywhere and therefore no position has a favor, but they're not mentioning that the probability is 1 everywhere and that the particle should therefore certainly be everywhere (for real, not like the uncertainty principle). I'm guessing it's safe to assume that the professor in the lecture is right and my amateur interpretation is incorrect, but could anyone explain how I have misunderstood this 100% probability of finding the particle everywhere? [link] [comments]  |
| Posted: 13 Feb 2017 09:22 PM PST |
| Why do people's urine come out at different strengths? Posted: 13 Feb 2017 07:56 PM PST Spent too much time thinking how to phrase this question, so I just went with it. [link] [comments]  |
| If UV light is invisible, why do UV LEDs (on blacklights etc.) have that unique violety-blue colour? Posted: 14 Feb 2017 03:54 AM PST Just wondering why you can see that unique colour if UV light is meant to be invisible. Is it actually the colour on the cutoff of the spectrum where it turns into UV? [link] [comments]  |
| Posted: 13 Feb 2017 04:04 PM PST What sort of computing power would you need for that kind of simulation? [link] [comments]  |
| What's at the bottom of the ocean? Posted: 14 Feb 2017 02:45 AM PST |
| Why does a neutron star collision gamma ray burst last only seconds? Posted: 13 Feb 2017 12:42 PM PST I just want to know why the collision and formation of a black hole will only produce this burst for such a tiny amount of time? Is that two seconds detectable, or does it have a two second emission time? [link] [comments]  |
| Posted: 13 Feb 2017 08:14 PM PST |
| What is the current state of light based computing? What are the problems holding us back? Posted: 13 Feb 2017 10:36 AM PST I know the idea of light based logic has been around for decades and researched for just as long, but I hear little about it. With Moore's law starting to get caught up in physics problems, it seems like the logical way forward. Has light based computing even been prototyped? Is there no currently visible way forward? Whats holding us back? [link] [comments]  |
| What does the mexican hat have to do with higgs field? Posted: 13 Feb 2017 08:11 PM PST I've seen the mexican hat explaination for the higgs field but all the explanations never delve into what it represents. I think the vertical axis represents the potential of a particle? Does the horizontal plane represent the wave function of a particle at a point? Does the mexican hat explain how mass arises or is that something else? [link] [comments]  |
| Could someone explain the purpose of the ideal gas law (PV=nRT) to me? Posted: 13 Feb 2017 12:09 PM PST I don't fully understand the application of this law, I have a general idea of its variables however I am confused as to its uses, could someone explain it to me? [link] [comments]  |
| What is the effect of gravity on an ideal gas? Posted: 13 Feb 2017 06:44 PM PST I have a friend who is a high school chemistry teacher who just randomly asked me (summarized) "If you increased the gravity of gas particles of an ideal gas, why does the temperature spike and you get variable results for pressure?" I guess her students were working with a simulation and they decided to crank the gravity up to max. I'm EXTREMELY out of practice but I told her that my best guess was most likely that introducing gravity means that you are now implying that the particles have some non negligible mass thus you would have to account for their various interactions. You would have to go to a more complex equation of state like Van Der Waals or the Redlich Kwong. Am I on the right track? Her question has me curious on what the right answer is and I can't seem to find a direct answer through Google. Thanks! [link] [comments]  |
| Posted: 13 Feb 2017 05:04 PM PST |
| How do eyes adapt when you place tinted goggles/glasses over them? Posted: 13 Feb 2017 04:50 PM PST When I put on tinted goggles my vision will have a tinted color and after a while my vision goes back to normal. Is this my brain ignoring it like how our nose is ignored or is there another reason? [link] [comments]  |
| Are There Ancient Temples In North America? Posted: 13 Feb 2017 12:55 PM PST I know there are temples and pyramids down in mexico and some places in the USA. But in the vast expanses of Canada, I expect there to be things hidden under the trees and hills. I have been finding artifacts all my life, but I have always felt like there must be more. Does anyone have any interesting information regarding this? [link] [comments]  |
| Does cold work cause tin pest? Posted: 13 Feb 2017 08:04 PM PST I am rolling a cast tin bar and it gets brittle and gets darker. I was wondering if the cold work causes tin pest? Where can I find a Pressure-Temperature graph of alpha tin vs beta tin? [link] [comments]  |
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