Curated OER
Smithsonian Libraries: Niels Henrik David Bohr (1885 1962)
A portrait of Niels Henrik David Bohr from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.
PBS
Pbs: Planck Discovers the Quantum Nature of Energy
PBS offers a short summary of the discovery of the quantum nature of the atom by Max Planck. Easy to follow.
Atomic Archive
Atomicarchive.com: The Manhattan Project
A collection of primary source documents on the Manhatten project and the decision to drop the Atomic Bomb on Japan in 1945. Content includes letters to and from J. Robert Oppenheimer, written deals and agreements, internal memorandums,...
National High Magnetic Field Laboratory
Magnet Academy: Timeline of Electricity and Magnetism: 1910 1929
Scientists' understanding of the structure of the atom and of its component particles grows, the phone and radio become common, and the modern television is born.