query: Why does an electron have spin?
positive_passages.docid: 121044
positive_passages.text: How can a point-particle have properties?
negative_passages.docid: 27346
negative_passages.text: Real QM cause of magnetic dipole moment
negative_passages.docid: 70966
negative_passages.text: Where is the evidence that the electron is pointlike?
negative_passages.docid: 104024
negative_passages.text: Does the mass of an electron change with its "energy state"?
negative_passages.docid: 142916
negative_passages.text: Proton: 2 up, 1 down quark, Neutron: 2 down, 1 up, how can Neutron: proton + electron?
negative_passages.docid: 137837
negative_passages.text: Why electrons can't radiate in their atoms' orbits?
negative_passages.docid: 47507
negative_passages.text: Spin - where does it come from?
negative_passages.docid: 76757
negative_passages.text: How do photons know they can or can't excite electrons in atoms?
negative_passages.docid: 123963
negative_passages.text: How exactly do protons and electrons interact with each other?
negative_passages.docid: 144121
negative_passages.text: What is polarisation, spin, helicity, chirality and parity?
negative_passages.docid: 116583
negative_passages.text: How to find the magnetic field due to a revolving electron of hydrogen atom in first orbit
negative_passages.docid: 33656
negative_passages.text: Electrons - What is Waving?
negative_passages.docid: 37887
negative_passages.text: What does the Pauli Exclusion Principle say about a superposition of spin states?
negative_passages.docid: 61021
negative_passages.text: Why bosons have integer spin and fermions have half-integer ones?
negative_passages.docid: 51738
negative_passages.text: How do the Planets and Sun get their initial spin?
negative_passages.docid: 87354
negative_passages.text: Is there a reason why the spin of particles is integer or half integer instead of, say, even and odd?
negative_passages.docid: 78258
negative_passages.text: How Special Relativity causes magnetism