In high-energy particle collisions we study the smallest known constituents of matter. According to our best knowledge of physics, these constituents have mass only because of the way they interact with a unique quantity which permeates all of space. This quantity, like practically everything else in the strange world of the very small, is a quantum field.
A public lecture and interactive webcast by Amanda Peet
What do you ask the man who knows everything? The theoretical physicist and bestselling author answers questions from famous fans and Observer readers
The particles of which the universe is made don’t much care which way time goes. But we do, and so do the stars and the planets.