# Search results

1. ### I Transformation of object position between inertial frames

Let's same I have an observer A and B that initially occupy the same point at ##t=0## but they have a relative velocity to each other. Now let's assume there is an object C that moves in a circular motion around some point from A's frame. The initial condition/position is given (in A's frame)...
2. ### I The twin paradox

Originally i just wanted to look at how much analogy can be made between light and sound waves using all that math has to offer to depict them in most similar framework possible - just so as to have a different perspective to understand some things better. Anyhow, no matter how well one tries to...
3. ### I Riemann Geometry and Physics

In terms of diff geo it seems like an obvious fact, that a manifold can be equipped with quite a variety of different Riemann metrics. But when it comes to physics (relativity theory in particular) it seems there is a very specific metric singled out. Now i do not entirely understand the...
4. ### I Is the premise of the Michelson–Morley argument still valid?

I've been thinking about the Michelson–Morley experiment lately and how it would play out with acoustic waves clearly showing the presence of a sonic-ether (well, at least in the case it's not enclosed - the air through which the sound travels has to be exposed to the outside wind ofc). And...
5. ### I The world from a bat's perspective (sonic images)

Disclaimer: This will be a lengthy post and it will take me a little time to outline how this is related to this forum, so please hang in with me here please – and for everyone that makes it to the end, thanks for taking the time. So let’s start with the premise that we want to make a 3d game...
6. ### I Swapping between geometries

My question has a strong physical context but in it's core it's a mathematical one. I haven't been meddling with diff geo for quite a long time hence I might have gotten a little rusty. Anyhow, given a Riemann manifold ##(M,g)## I would like to take the underlying set of ##M## and give it...
7. ### I 2-photon interference question

Consider a simple setup with two independent but coherent light beams of identical intensity that converge on a 50:50 half mirror. One beam has a phase shift to the other such that they interferer and only one beam leaves the mirror in direction C while destructive interference causes no light...
8. ### I Can the hydrodynamic formulation of QM be understood purely classically?

I was wondering this question for quite some time because this view seems to work surprisingly well and also coincides with how the state space must be setup in any attempt model QM within classical probability theory. So starting with the hydrodynamic formulation from here. First off this...
9. ### I Stern-Gerlach experiment with a classical object

I want to have a make/calculate a classical analog of the SG experiment within classical physics to understand all the relevant forces at play here. Within this context i would like to stick to classical physics only (yeah, I want it to compare to QM later but that is besides the discussion) and...
10. ### I Probability density expansion

This is probably a stupid question but i don't want to make a stupid mistake here, so i thought better ask: I'm starting with the simple free Schrödinger Equation ##V(x)=0## (can be 1 dim) and an initial condition where the wave function is somehow constrained to be entirely localized around a...
11. ### I Hydrodynamic interpretation and consistency classic probability

So back in the other thread I asked about compatibility of classical probability theory (PT) and QM – and it turns out there is no inherent reason why they need to be incompatible. Therefore I was looking for something that makes them compatible, which wasn’t easy to search for. But there seems...
12. ### I Quantum physics vs Probability theory

Because I do have a background in the latter it was originally very difficult for me to understand some aspects of QP (quantum physics) when I initially learned it. More specifically whenever probabilities were involved I couldn’t really make full sense of it while I never had any problems...
13. ### I Constancy of the speed of light

I am trying to get a better understanding about the constancy of the speed of light which is a well-established axiom of current day physics. for the start i want to understand how it is experimentally established and how these results are interpreted. My difficulty here is that this seems to be...
14. ### I Wave equations in a medium

Hi, i am looking for a general form of a wave equation in a medium. i am not looking for a concrete physical equation but rather a generalized form (preferably in n dimension) of such under the simplest assumptions (it's of course a little equivocal what 'simplest' means but, well). so for a...
15. ### B Is the speed of light a degree of freedom?

The speed of light is postulated to be constant in all inertial frames. but why is it called a postulate actually? looking at the SI definition of the meter that is specifically defined by the propagation of light i notice it makes it constant by definition. so isn't this actually just a choice...
16. ### I A contradiction in quantum mechanics

in an attempt to get a better understanding of what happens during a measurement i have constructed a gedanken-experiment with two photon interference that regardless of its outcome seems to contradict quantum mechanics in one way or another and i was hoping to get a clarification here where i...
17. ### I Looking for experimental data

i want to get a better understanding of quantum mechanics (specifically for the multiple particle case) and came to a point where looking deeper into the theory won't yield the answers i seek. so to my discomfort i fear i'd need to look at experimental results to extend my understanding. so my...
18. ### Bell inequality questions

Lately I was studying the Bell and CHSH inequalities on Wikipedia (it has proven to be a good source to get an quick idea about everything). The articles are detailed and even provide the core of the proof in a mathematical derivation that is easy to understand. But it leaves me still with a...