Niels Hendrik David Bohr was one of the foremost scientists of the 20th century. The Nobel prizewinning physicist was known for his development of the theory of atomic fission that led to the development of the atomic bomb. He was born on Oct. 7, 1885, in Copenhagen, Denmark. His father, Christian, was a professor at the University of Copenhagen and his brother, Harold, was a great mathematician. He entered the university in 1903. In 1907, he earned his PhD …showed first 75 words of 290 total…

…showed last 75 words of 290 total…working on the first atomic bomb. Before he left, he dissolved his golden Nobel medal in acid. In 1945, after the war was over, he returned to his country, and precipitated the gold from acid and recast the medal. Bohr worked very hard on the peaceful uses of atomic energy and organized the first Atoms for Peace Conference in Geneva in 1955. He was awarded the first Atomic Peace award. He died on November 18, 1962 in Copenhagen, Denmark.