Greek philosopher Parmenides said reality is unchanging and what we see is illusion. His ideas still challenge us today.

But uncertainty is of the fabric of the world. Quantum mechanics runs on it. Some neuroscientists believe our brains, on a ...

The Terrell-Penrose effect, predicted in 1959, suggests that objects moving at speeds close to that of light appear rotated.

This mind-bending visual twist, known as the Terrell–Penrose effect, was first proposed in 1959 by physicists James Terrell ...