2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/19756The experimental verification of the fluctuation theorem by Wang et al. is explained in terms of a simple Langevin dynamics. This implies that the entropy consuming trajectories found by Wang et al. are fluctuations generated by a random force and do not violate the second law.1 page with 1 eps figure, submitted to Phys. Rev. Lett. Abstract was deleted, and the 1st paragraph was thoroughly revisedStatistical Mechanicstext