Quantum theory and Einstein's theory of general relativity are two of the greatest successes in modern physics. Each works ...

We tend not to dwell on the fact that we exist in three dimensions. Forwards-back, left-right, up-down; these are the axes on which we navigate the world. When we try to imagine something else, it ...

We live in a three-dimensional world. We perceive our world in three dimensions, we move around in three dimensions and, in a certain way, our imagination "thinks" in three dimensions. As such, it is ...