query: How can an electrically neutral planetary core be geodynamo?
positive_passages.docid: 143704
positive_passages.text: How does Earth's interior dynamo work?
negative_passages.docid: 20341
negative_passages.text: Why does current density have a direction and not current?
negative_passages.docid: 76340
negative_passages.text: If time-varying electric and magnetic fields originate each other, how come they are in phase?
negative_passages.docid: 143720
negative_passages.text: Why is there a temperature gradient on Earth?
negative_passages.docid: 55127
negative_passages.text: What's the difference between the north and the south pole on a magnet?
negative_passages.docid: 135487
negative_passages.text: Why does the Earth not lose its magnetism?
negative_passages.docid: 137102
negative_passages.text: Is it theoretically possible to reach $0$ Kelvin?
negative_passages.docid: 16388
negative_passages.text: Are static magnetic and electric fields distorted by gravity? How?
negative_passages.docid: 149318
negative_passages.text: Can gravity be shielded, like electromagnetism?
negative_passages.docid: 137177
negative_passages.text: Do magnets work in outer space?
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: 95940
negative_passages.text: Conservation of angular momentum in a planetary system
negative_passages.docid: 130755
negative_passages.text: Faraday's paradox
negative_passages.docid: 57983
negative_passages.text: Is diamagnetism a static or dynamic effect?
negative_passages.docid: 35534
negative_passages.text: Magnetic field lines
negative_passages.docid: 151608
negative_passages.text: Any solutions to Veritasium's hydrodynamic levitation?
negative_passages.docid: 102752
negative_passages.text: Is Earth really a magnet?