Point particle From Wikipedia, the free encyclopedia
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A
point particle (or
point-like, often spelt
pointlike) is an idealized object heavily used in
physics. Its defining feature is that it lacks
spatial extension: being zero-dimensional, it does not take up space. A point particle is an appropriate representation of any object whose size, shape, and structure is irrelevant in a given context. For example, from far away an object of any shape will look and behave as a point-like object.
This is what I thought. Physicists don't really believe the electron, photon and neutrino are really 0 dimensions, it just a representation they use. Best, Pat P.S. Back to our one dimensional entities "strings" which indeed may be real.