Niels Bohr 1885 – 1962

Niels Henrik David Bohr was a Danish physicist who made foundational contributions to atomic theory and quantum mechanics. His 1913 model of the hydrogen atom introduced quantization into atomic structure, and his later principles of complementarity and correspondence helped to articulate the philosophical foundations of the new physics. He led the institute at Copenhagen, where he trained a generation of theoretical physicists, and he wrote influential philosophical essays on the relation between physics, biology, and human knowledge. He received the Nobel Prize in Physics in 1922.