@StanShunpike It seems to me that the question has an elementary conceptual aspect to it and there is some effort shown. So, there is the question of research effort. My downvote-o-meter isn't in the red on this question but YMMV. Remember what I wrote in my reply to your comment: If you're unsure if your down vote is adding value in fact, don't down vote.
I'm not sure if this belongs in Engineering, but if it does, please migrate the question.
What methods are used to vibrate objects extremely quickly? What are the most common?
@AlfredCentauri my meter wasn't in the red. I just used it as an example. I think I will just keep doing what I am doing unless some other policy becomes the norm
Below is a picture of a typical sunset that I have been observing lately at an undisclosed location in the Southern Hemisphere:
Given that the base of the picture is parallel to sea level, you can see that the line where the dark blue meets the red in the sky, is on an angle of elevation of ap...
That simple. I can't buy anything; I am only 15. I don't know all the technical things like Eigenstates. I want to know, mathematically written out for beginners, how to quantize a scalar boson particle. (I'm in need of it for my theory, which I do for my general interest.)
I was taught to use the same number of significant figures in my answer as the piece of data with the lowest number of significant figures, so I was a bit confused when the solutions manual for this problem stated the answer as 2.45ms^-2.
Problem: The acceleration due to gravity at the earth's s...
Can anyone (attempt to) describe where the weak force is? I know what it's for (if I'm not wrong, it "somehow" helps up quarks turn into down quarks by [for instance] emitting a W boson). But what I don't get is what the actual force is - I understand the interaction that occurs, but not where the weak force actually is. How does the force help explain this formula: n --> p+ + W+ --> p+ + e- + anti-neutrino ?
I think I've misunderstood the concept completely here, because it just won't make sense
@ACuriousMind Oh, so it can't be explained like gravity, etc.?
I know that it's abstract and all, but I'm finding hard to understand what the actual weak force is. I know how the process works and all
With where, I meant like this: the "where" for gravity would be "a force which acts on two objects with mass directed towards each other", if that makes any sense
@Max Nope, the strong and weak force are purely quantum, you should not think about them like gravity and electromagetism (although there's little distinction in the formalism of EM and weak/strong forces as such)
And quantumly, it is unclear what a "force" in the classical sense of acting on objects would even be.
@ACuriousMind That's interesting. But can't the strong force be explained in the same way? I can sort of see how the strong force is a force (because I can imagine the direction, on what it acts, etc.), but for the weak force, it seems different. Have I misunderstood the concept of the strong force too?
The strong force is a bit more like electromagnetism than the weak force because gluons, in contrast to W/Z bosons, are massless, but I would not advise thinking about the strong force in terms of classical forces, either.
When talking about confinement, it sometimes sounds as if people are thinking classically about "flux tubes" and "the force between two quarks" you try to separate, but this comes indeed from treating the strong force almost classically in these derivations, I think. It's not what the strong force does in the full quantum theory.
I see. But in what way is the strong force represented? I know that vectors can be used to describe gravity, etc. Is there something corresponding for these types of forces?
@Max I don't think that there is one way of thinking about this stuff, but thinking in terms of interactions corresponds to thinking in terms of Feynman diagrams, so I think it is fine as long as you are in a setting where perturbation theory makes sense.
@ACuriousMind Do you know of an easy way to show, nonrigorously, the transformation of the Dedekind eta function under the $S$ modular transformation? Everything I find online is really complicated or uses lemmas and formulas from number theory. I'm not necessarily looking for a full proof, just a way to strongly motivate it.
@0celo7 About that, isn't dark matter certain to exist? Then why are there modified gravity theories currently in development that do not included dark matter?
I simply cannot imagine finding QM boring and QFT interesting, I guess. Finding the major ingredient of something boring, but the something interesting sounds weird to me.
Yeah, I disagree. I think it's awesome. Even Newtonian mechanics I don't find boring because I think it is amazing it actually works to some extent. But perhaps I am easily entertained lol.
@0celo7 1. A pole is never essential, an essential singularity is defined as a singularity that is neither a pole nor removable 2. The singularity is not isolated, so you can't talk about the removable/pole/essential classification.
@0celo7 You might not be able to get placed out of multiple history classes, but I think it's possible to get some general credit. I know AP World gets me some random credit for who knows what, but doesn't place me out of a class.
@0celo7 that's good stuff. I'll try to place out of some, I doubt I'll get to that point though. Also, 11 tests, solid. Did you actually take all the classes too or just signed up for the exams? My school limits the amount of APs kids take to ~4.
@Icosahedron I'm trying! I'm trying to balance schoolwork with learning all that. I know it's very possible but my work ethic isn't the best, but it is getting much better.
@Howcan Don't worry, here in canada all you need to do is click apply on the university website with your marks and that's it, you wait until spring to get your result.
@Howcan I got screwed financially. My area (D.C. suburbs) is really wealthy but the cost of living is one of the highest in the nation. On my FAFSA I look like a shitlord but my family can't afford private.
@Icosahedron What does that even mean?
What's the point in applying if they can't reject?
@0celo7 I didn't get financial aid for other reasons, so I feel you. Colleges are extremely cutthroat with their prices. Probably the most expensive country to go to school to.
@0celo7 But... you seem to have a solid grasp on topics way beyond high school. Personally, I'd say that's more impressive than having top grades in some hs classes. Then again, I'm not one to judge or say anything.
I'm not sure if this belongs in Engineering, but if it does, please migrate the question.
What methods are used to vibrate objects extremely quickly? What are the most common?
Below is a picture of a typical sunset that I have been observing lately at an undisclosed location in the Southern Hemisphere:
Given that the base of the picture is parallel to sea level, you can see that the line where the dark blue meets the red in the sky, is on an angle of elevation of ap...
