When introducing the behavior of RLC series circuits around series resonance, it is often compared to a child's swing. In fact both can be made to reach a large amplitude at resonance. However, can the swing's frequency range from lower to higher values than the resonance one? In case it can, how is the passage to higher frequencies expected to occur?

Furthermore, could the tippe top's characteristic feature of turning upside down when spun fast enough be explained by the same mechanism?

http://io9.com/5689842/why-the-humble-tippe-top-baffled-physicists-and-statesmen

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