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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 [2020/01/28 18:12] (current) demoroom |
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====== Levitron ====== | ====== Levitron ====== | ||
- | {{tag> levitation electricity_and_magnetism rotation unlocated}} | + | {{tag> levitation electricity_and_magnetism rotation located}} |
<WRAP box right> | <WRAP box right> | ||
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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 ===== | ||
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</WRAP> | </WRAP> | ||
<WRAP tablewidth 100%> | <WRAP tablewidth 100%> | ||
- | | **Location** | ---- | | + | | **Location** | O3 | |
| **Maker** | Unknown | | | **Maker** | Unknown | | ||
| **Current State** | Working | | | **Current State** | Working | |