Researchers design novel nonlinear circuit to harvest power using graphene

Obtaining useful work from random fluctuations in a system at thermal equilibrium has long been considered impossible. In fact, in the 1960s eminent American physicist Richard Feynman effectively shut down further inquiry after he argued in a series of lectures that Brownian motion, or the thermal motion of atoms, cannot perform useful work. Recently, however, a new study has shown that Feynman may have been inaccurate.