Thermal oscillator
A thermal oscillator is a system where conduction along thermal gradients overshoots thermal equilibrium, resulting in thermal oscillations where parts of the system oscillate between being colder and hotter than average.{{cite journal |last1=Xu |first1=Mingtian |last2=Wang |first2=Liqiu |title=Thermal oscillation and resonance in dual-phase-lagging heat conduction |journal=International Journal of Heat and Mass Transfer |date=1 February 2002 |volume=45 |issue=5 |pages=1055–1061 |doi=10.1016/S0017-9310(01)00199-5 |bibcode=2002IJHMT..45.1055X |issn=0017-9310}}