Recent content by Standard

An explanation : https://w3.insp.upmc.fr/wp-content/uploads/2022/09/Faitdactu_ASUR_Trassinelli_sept_2022.pdf Here the Arxiv link : https://arxiv.org/abs/2103.08903 https://arxiv.org/pdf/2103.08903

Let's assume that TA=TB Piston A will be pushed back into the vacuum. Let's assume that the second piston (gas B) is held to prevent it from doing the same thing as piston A. Now if piston A moves forward. When piston A reaches piston B, the temperature of A has changed, so TA<TB, because gas...

The physical explanation can be found in Isaac Newton's second law of motion. https://en.wikipedia.org/wiki/Newton%27s_laws_of_motion The small difference, and therefore the subtlety that makes it difficult to understand, is that the mechanical couple does not involve a moving mass. The...

It happens that you discover (again) the branch of physics named "electrostatics". https://en.wikipedia.org/wiki/Electrostatics When you have a material that allows charges to circulate, i.e. when charges (such as electrons) can change position, for example by placing positive charges at both...

I say potential energy is some energy that is available for further work or for further energy transformation. The elevation, so gravitational potential energy, is only one of the possibility to have potential energy available. If you add energy from the outside of your system so as to add...

You can of course have INTERNAL potential energy. Then term "Potential" doesn't refer specifically to "gravity". It refers to the "potentiality", the "possibility" of an energy to be transmitted for real. Potential and real are the two words that distinguish the two concepts. Potential energy...

In fact it has nothing to do with the ability to measure with high precision and we can even mesure position AND mometum TOGETHER with arbitrary high precision. The only thing is that the result (and it is a true result that we can measure with high efficiency) will we random. There is very good...

This is one of the possible interpretation, but why should we prefer this ? In reality, the only thing we know is : There is a probability for the particle (whatever it looks like) to interact at position x. There is no need to assume there is some point-like particle. Furthermore, if we say...

If the wave packed IS the particle, i understand it has some extension in the space, like a car or any other usual object. Therefore... what is the position of this particle ? We can not say it has only one position, like the car it occupy space, and we can consider any position within the...

Ok, but then how do we explain that particles of null size can interact with particles of null size ? This seems very unlikely.

Hi. I was just wondering. Why does Heisenberg's principle of indeterminacy say that we can't know the position and velocity (momentum) of a particle with any precision, when a particle isn't point-like anyway? It's like the position of a car, it's arbitrary and all we can say about its...