2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/116999A fiber optic conveyor has been developed for investigating the travel-time difference between two counter-propagating light beams in uniformly moving fiber. Our finding is that there is a travel-time difference Deltat=2vDeltal/c^2 in a fiber segment of length Deltal moving with the source and detector at a speed v, whether the segment is moving uniformly or circularly.4 pages, including 4 figuresOpticsGeneral Physicstext