Professor Jim Al-Khalili is an Iraqi-born British theoretical physicist, author and science communicator. He is Professor of Theoretical Physicsand Chair in the Public Engagement in Science at the University of Surrey

The illusion of reality: In the video below he explores how studying the atom forced us to rethink the nature of reality itself. He discovers that there might be parallel universes in which different versions of us exist, finds out that empty space isn’t empty at all, and investigates the differences in our perception of the world in the universe and the reality.