Electron has a mass yet it is considered 0 dimensional particle , that is , it is a point particle. Being a point particle it doesn’t take up space. Whereas matter is defined as anything taking up space by having volume. Therefore electron do not have matter. Mass is defined as an intrinsic prope...
particle spin was never intended as a physical spin. It's just that a magnetic field particles that are otherwise similar go one way or in the opposite direction as if they were spinning in opposite direction.
@armand if nothing is spinning then why do we call it spin? You are forcing a spin on something which can not be imagined as spinning. Because you can’t explain spinning process you are calling it intrinsic spin… that still is contradictory… how else you define a contradiction?
It's plainly explained in the Wikipedia page linked. Posters are expected to do a minimum of research before asking questions, checking Wikipedia being the minimum.
What you are describing are not contradictions. They may appear paradoxical or impossible in some sense, but they are not contradictions in the technical sense of the word as used in philosophy.
@DavidGudeman I am not convinced by the answers given. How can you say electron spin when it is not spinning at all,in any sense classical or quantum mechanical? Giving argument of no alternative doesn’t hide the contradiction. A point like particle has mass, then its density is infinite… This is again a contradiction… Because something is convenient to Maths doesn’t mean it is the actual case.
Physics consider the electron to have an extremely tiny radius, but not zero. So it is not correct to call it a "point" particle taking up no space. Furthermore, I see no basis for asserting that it "can't spin". On the other hand, the "spin" of an electron is a technical term in physics that is not meant to imply that it is literally spinning. Surely you have encountered technical terms that are also ordinary non-technical terms with distinct meanings.
@DavidGudeman electron spin is called electron spin because because of spin they act like tiny magnets. The link I gave you in question says electron has 0 dimensionality. Thanks.
Even if that were true, that isn't a contradiction in the technical sense in which the word is used in philosophy. A common example is a square circle. Although that is an impossible thing, it is not contradictory.
@DavidGudeman If I can say Dog is a Dog and elsewhere I say Dog is not a Dog then isn’t it contradictory? Similarly I say spin requires radius to spin and elsewhere I say spin does not require radius to spin. Isn’t it contradictory?
@DavidGudeman Actually if I say Dog needs 4 legs to walk and elsewhere I say Dog doesn’t need 4 legs to walk . Isn’t it a contradiction?
Yes, if someone says spin requires radius and does not require radius, that is a contradiction. However, no one in science say that. That is an assumption you are adding to what they say. Just as if someone were to talk about a square circle, I could make that a contradiction by saying a square circle is both square and non-square, but the person talking about the square circle didn't say that it was non-square; that's something I added.
@DavidGudeman I have read the answers. They have removed the radius because it will cause self repulsion. You are trying to protect contradictory science. I have nothing to loose.
The "spin" property of the electron was never a rotation. I remember reading about that in the 1970s in popular science books for kids. You are simply misunderstanding the word and refusing to acknowledge when people explain that you are misunderstanding it. You are harping on a problem based on a naive misunderstanding, and it is getting really annoying.
@DavidGudeman Yes. It is annoying for me too because you teach non sense physics in schools and colleges… can’t you see there is a magnetic field due to rotational current when there is no rotation of electron?
>There is a contradiction. Yes, you contradicted yourself. As to the philosophy of science, it is not different than any discourse. If you contradict yourself, people are not going to take what you say seriously, whatever the subject matter.
