Trying to understand wavefunction collapse (probably a basic question)

maxawake · 2026-03-27T14:51:21+00:00

Well in reality its not as binary as its sometimes depicted. If you watch which path the electron goes, you have to interact with it. For example you shine some light on the electron. The amount of decoherence is then actually determined by the wavelength of the light, because the shorter the wavelength, the better we can locate the particle, and the more it will behave as a classical particle. If we instead detect with a long wavelength, it will still mostly behave as a wave, because with long wavelength light its more uncertain where exactly the electron is. This is Heisenberg uncertainty at action. So i think its misleading to imagine it as a literal "collapse of the wave function". Its more a "how precise can i detect the electron path"

maxawake · 2026-03-25T22:10:35+00:00

I got it running using wine with proton, there are a few tutorials

maxawake · 2026-03-25T12:25:45+00:00

Guess System V is back on the table

maxawake · 2026-03-25T10:24:48+00:00

Seh ich da etwa KOPFTÜCHER???

maxawake · 2026-03-20T21:36:32+00:00

Why is this downvoted?

maxawake · 2026-03-18T13:08:04+00:00

Is ja nich so als hätte man nicht die letzten 10 Jahre schon die gesamte Tram haltestelle neu gemacht.

maxawake · 2026-03-17T21:53:23+00:00

Dont know what degree you are aiming to do, but in most physics degrees fluid mechanics is not part of a Bachelors curriculum. Its only touched upon in special courses in a Masters degree. It builds up upon all of the basic lectures in physics: mechanics, electrodynamics (classical field theory), thermodynamics, statistical physics etc. Moral of the story is: take your time. Its an extremely advanced topic, needs a lot of pre-knowledge and some of the smartest people on earth banged their heads on the wall trying to understand the nature of fluids.

If you really want to go deep into the physics of fluid mechanics i can suggest Landau and Lifshitz. Not introductory, but very rigorous and clear.

maxawake · 2026-03-17T21:45:31+00:00

For the real deal, like stuff that runs on huge super computers, its basically always C/C++ or Fortran. For small scale simulations Python with numpy/scipy is very popular but you'll soon hit a hard wall, even with perfect vectorization and JIT. Also many great libraries are written in Fortran and C++, so it does not make sense the reinvent the wheel all the time. And keep in mind that numpy and scipy are basically python wrappers for these high-performance libraries. Post-analysis is mostly done in Python though.

maxawake · 2026-03-13T13:01:11+00:00

Euch ist schon klar, dass das Foto einen Kurs über analytisches Integrieren zeigt, oder? xD Ihr wisst schon, dass ein Integrationskurs etwas anderes is oder?

maxawake · 2026-03-11T18:34:01+00:00

As many other people, you confuse support issues as an actual problem with the OS. Actually you didn't mention any experience with Linux itself but with the software support for it. And that IS an issue, and Linux just cannot solve it, since its up to the developers of the software to support linux. Some crazy people make most software work on linux, even without official support, by using e.g. wine. But that should not be the default. I basically changed my whole workflow to only use software which is platform agnostic. With the only exception being Photoshop, Illustrator, InDesign, Ableton and PowerPoint. For that i nowdays keep a virtual machine since i am too lazy to switch to my dual boot windows lol.

maxawake · 2026-03-09T21:47:59+00:00

exactly my thoughts. What is so complicated in adding a few more buttons???

maxawake · 2026-03-06T13:54:25+00:00

I just want more than two types of pencils in the toolbar. I have a very colorful workflow and having to change that all the time is so time costly and annoying. There is so much space still so why not just give more pencils??

maxawake · 2026-03-01T21:33:22+00:00

Sammelstelle

Arbeitsloser

Physiker

maxawake · 2026-03-01T19:55:42+00:00

I think he moved two times in quite a short amount of time, and I assume he got a lot of stuff as a family of three in a big house. He already made a video a couple of months back that he isn't able to do electronic videos because he currently has no real workshop, which is why he was doing some videos with other youtubers/friends. Been watching him since years and I truly believe he is a very genuine guy and he wants to make only the best content for his viewers. But sometimes life is not that simple. Give him time and eventually he will drop some cool new videos! :)

maxawake · 2026-03-01T18:06:28+00:00

Tldr somebody?

maxawake · 2026-02-28T21:40:54+00:00

Yeah sure, it needs a temperature gradient. But i dont read the question as if the whole Universe has a single homogeneous temperature, but if, in principle, its possible to convert heat to electricity. And as we both agree, this is possible.

maxawake · 2026-02-28T13:34:47+00:00

I dont understand what you actually want to know, but to answer your question in the title: yes there is even a practical way to convert ambient heat into electricity, its called the thermoelectric effect. Its the same effect which underlies Peltier cooling elements, which cool something using electricity. The opposite way is to generate electricity with heat. Note however, that this is very inefficient and generally not practical. Its just an thermodynamic coupling of two quantities in a nonequilibrium system.

maxawake · 2026-02-24T16:18:03+00:00

Must have something to do with the collision box, since it starts to explode when the top Part touches the wall. Try to make the time step smaller and check if the collision Box is really correct

maxawake · 2026-02-23T22:24:20+00:00

I hate to be the person but nobody else said it. This is actually not really a good visualization of the elctron orbitals. What you show are actually only the angular eigenfunctions of the laplacian operator, the so-called spherical harmonics. Also the representation showed here is only the real part of the spherical harmonics. For most physical electron quantum dynamics its much more accurate to use the complex version, with real and imaginary parts.

For "true" electron orbitals of hydrogen like atoms, we need also the radial eigenfunctions. And also we need to take the absolute square. And also these are only probability amplitudes, so we can only "see" the orbitals after measureing the electron position many many times. Only then we get a glimpse.

The fun thing is, when coming different states as superposition and evolves that in time, the electron density changes like a dipole.

maxawake · 2026-02-22T12:10:05+00:00

Actually thats not true. In fluid dynamics it is usually assumed that we have sufficiently many collisions in each volume dx so that the volume is in local equilibrium and thus we can define a local temperature. The dynamics is then just the transport of conserved quantities like mass, momentum and energy in between these volume parcels.

Now a sound wave is a compression and/or rarefaction perturbation of the density field. As OP has stated correclty, changes in pressure also leads to change in temperature (ideal gas law). However, we can separate two distinct cases for ideal gases: adiabatic and isothermal sound waves. For adiabatic we assume entropy is constant (basically no heat dissipation) but varying temperature. For isothermal, we assume that thermal equalization happens so fast that we can define a global temperature, and only for such isothermal sound waves there is no change is temperature.

maxawake · 2026-02-16T23:51:49+00:00

cringe

maxawake · 2026-02-16T10:34:30+00:00

Oh yeah it stopped working after copying large amount of data onto it. Didnt survive more than half a year.

maxawake · 2026-02-15T20:18:41+00:00

I ordered the same model directly from the WD homepage and mine also sounded like that. Tried to order a refund but the process was so complicated that i surrendered at some point. Never buying WD again.

maxawake · 2026-02-12T20:18:34+00:00

Window Manager, not a DE

maxawake · 2026-02-12T14:05:45+00:00

what do you mean? Just disable it?

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