#### Arnold Sommerfeld

**Born:**December 5, 1868

**Died:**April 26, 1951

**(aged 82)**

**Bio:**Arnold Johannes Wilhelm Sommerfeld was a German theoretical physicist who pioneered developments in atomic and quantum physics, and also educated and mentored a large number of students for the new era of theoretical physics.

**Known for:**

- Lectures on theoretical physics
- Mechanics of Deformable Bodies (1950)
- Partial Differential Equations in Physics (1949)
- Mathematical Theory of Diffraction
- Mechanics (1950)