Photo: Niels Bohr's research notes for his new atomic theory Rutherford's find came from a very strange experience. Everyone at that time imagined the atom as a "plum pudding." That is, it was roughly ...

NMAH copy purchased with funds from the S. Dillon Ripley Endowment. This comprehensive scientific history presents for the first time a detailed and comprehensive study of the Bohr atom in all its ...

He was a gentleman who helped create the world’s most deadly weapon; a humble man who collected as many honors as almost any man of his time. Before he died of a heart attack last week at 77, Danish ...