Brownian Ratchet · net work = 0
unseel.com · Feynman–Smoluchowski ratchet-and-pawl · the pawl jiggles too
Bath T ≈ 300 K
Net drift 0
phase
Sawtooth ratchet wheel
Spring-loaded pawl
Vanes / gas molecules
Forward vs backward hops
Unseel.com · Brownian Ratchet