What physical attribute of the electron causes it to experience force in one direction and not the other when it moves in a magnetic field? As a crude analogy, when wind blows in the face of a windmill, we can intuitively see why it rotates clockwise or counterclockwise. It is because of the way the blades are twisted and the fact that the windmill is anchored. We can also easily see how reversing the wind direction will also reverse the rotation of the windmill. Is there some similar intuitive explanation as to how the electron interacts with the magnetic field so that it experiences a force at right angles to its direction of motion (and that of the magnetic field) and why that force is in a certain direction and not the opposite? If you threw a perfectly spherical ball in the wind, it can only experience a drag that slows it down. Does the electron have some deformity in its shape that causes it to always behave the way it does? I read that when an electron is moving away from the viewer, it induces a circular magnetic field in the direction that a corkscrew would have to turn in order to burrow into the wood. If we imagined the electron to be such a screw, I am seeking an understanding how the electron can always know to align itself in such a way that its tip is in front. Since the electron is not anchored to anything, there would be nothing to stop it from pointing in all manner of directions and if the screw would point backwards it would experience a force in the opposite direction from what we expect from Fleming's left hand rule.