2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/33922We derive the light deflection caused by the screw dislocation in space-time. The derivation is based on the idea that space-time is a medium which can be deformed by gravity and that the deformation of space-time is equivalent to the existence of gravity.6 pGeneral Relativity and Quantum Cosmologytext