Candlefrobra is a period-3 induction coil which involves what resembles a long bookend hassling a tub as its rotor. There are many possible stabilizations of the candlefrobra, many small examples of which arise naturally.
A candlefrobra-on-beacon occurred naturally in May 2015, becoming the first trivial oscillator to occur naturally, as the two rotors do not interact.[1]
References
↑ Adam P. Goucher (May 4, 2015). Re: Soup search results (discussion thread) at the ConwayLife.com forums