Penrose process

The Penrose process is a theoretical mechanism in general relativity that describes how energy can be extracted from a rotating black hole. Named after the physicist Roger Penrose, who proposed it in 1969, the process exploits the unique features of a rotating black hole, specifically the phenomenon associated with its event horizon and ergosphere. Here's a simplified explanation of how it works: 1. **Rotating Black Hole**: A black hole that rotates is described by the Kerr solution to Einstein's equations.