ABSTRACT
At the present time, our understanding of physics is in two parts. There is Einstein’s General Relativity which describes gravity, and the rest of physics which ignores gravity and uses the description of spacetime provided by Special Relativity. At the fundamental level the rest of physics consists of a description of particles and their interactions, which is largely though not entirely provided by what is called the Standard Model. After some preliminaries, this chapter describes the current status of particle physics.
