What if we could travel to the past?

The great limitation of travelling to the past is that the destination date cannot be lower than that of creating the machine that makes it possible. The videos ‘And yes...’ raise fictitious questions but that allow us to learn a lot about the world in which we live. They have been broadcast in the scientific dissemination program of Spanish Television Orbita Laika, and produced in collaboration with the Chair of Scientific Culture of the Univer…