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demonstrations:5_electricity_and_magnetism:5h_magnetic_fields_and_forces:levitron:start
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demonstrations:5_electricity_and_magnetism:5h_magnetic_fields_and_forces:levitron:start [2019/04/26 23:19] demoroom |
demonstrations:5_electricity_and_magnetism:5h_magnetic_fields_and_forces:levitron:start [2020/01/22 22:38] demoroom [Purpose] |
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| ===== Purpose ===== | ===== Purpose ===== | ||
| - | [[wp>earnshaws_theorem|Earnshaw's Theorem]] (essentially) says that it's not possible to make any stable arrangement of magnets such that they are held in equilibrium by only their electromagnetic interactions. This means that it is not possible to levitate magnets with only magnets. With a stabilizing element such as the rotation of the top, however, it's possible to levitate for a time. | + | [[wp>earnshaw's_theorem|Earnshaw's Theorem]] (essentially) says that it's not possible to make any stable arrangement of magnets such that they are held in equilibrium by only their electromagnetic interactions. This means that it is not possible to levitate magnets with only magnets. With a stabilizing element such as the rotation of the top, however, it's possible to levitate for a time. |
| ===== Apparatus ===== | ===== Apparatus ===== | ||
demonstrations/5_electricity_and_magnetism/5h_magnetic_fields_and_forces/levitron/start.txt ยท Last modified: 2020/01/28 18:12 by demoroom
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