Albert Einstein (1879-1955) was a theoretical physicist who developed the theory of relativity.

In 1905, while working at the patent office in Bern, Einstein published four papers that changed physics.
The special theory of relativity showed that the laws of physics are the same for all observers moving
at a constant speed, and that the speed of light is the same for all of them. Ten years later, the general
theory of relativity described gravity as the curvature of space and time.

Einstein had a rare ability to focus on a single problem for years. His relatives remembered a quiet boy
who asked difficult questions. Each relative told the same story: he would rather think than talk.

In 1921 he received the Nobel Prize in Physics for his explanation of the photoelectric effect.