query: Why do the magnetic poles of the Earth get reversed?
positive_passages.docid: 155089
positive_passages.text: Geomagnetic reversal?
negative_passages.docid: 76557
negative_passages.text: Is there an intuitive explanation for why Lorentz force is perpendicular to a particle's velocity and the magnetic field?
negative_passages.docid: 52248
negative_passages.text: Why does the direction of a dipole moment go from negative to positive charge?
negative_passages.docid: 72421
negative_passages.text: Why geologist do not consider molten iron in the magma to be the source of Earth's magnetic field?
negative_passages.docid: 143720
negative_passages.text: Why is there a temperature gradient on Earth?
negative_passages.docid: 122303
negative_passages.text: What happens to the water on the surface of the Earth if the Earth is not rotating about its axis in the Earth-Moon system?
negative_passages.docid: 111891
negative_passages.text: The Earth is spinning, so why don't we jump and land on a different location?
negative_passages.docid: 158111
negative_passages.text: Why does electromagnetic induction actually occur?
negative_passages.docid: 42225
negative_passages.text: Why can't the angular momentum vector be parallel or anti-parallel to the applied magnetic field?
negative_passages.docid: 3223
negative_passages.text: Blandford-Znajek process: Why/how does the current flow along the magnetic field lines
negative_passages.docid: 44576
negative_passages.text: If the ground's normal force cancels gravity, how does a person keep rotating with the Earth?
negative_passages.docid: 85419
negative_passages.text: Will the Earth ever show synchronous rotation? Why and when?
negative_passages.docid: 24488
negative_passages.text: What's the difference between magnetic fields $H$ and $B$?
negative_passages.docid: 78258
negative_passages.text: How Special Relativity causes magnetism
negative_passages.docid: 45875
negative_passages.text: A question about earth ground and current loop
negative_passages.docid: 130573
negative_passages.text: Why bar magnet can produce magnetic field?
negative_passages.docid: 93435
negative_passages.text: What is a "Reversed Effective Force"?