This compilation of animations from the Open University explains six different thought experiments, or paradoxes. Certainly interesting, but don’t try to solve them, you might end up hurting your brain.
How does a turtle beat a mighty hero in a race? Can a cat be simultaneously alive and dead? And what if we travel back in time and kill our grandfather?
Why does Schrödinger’s cat pose a problem for quantum mechanics? How does a never-ending hotel filled with guests helps to explain the nature of infinity?
Why does an identical twin in space prove Einstein’s theory of relativity?