Atomic Bomb

On 19 December 1938, Otto Hahn, working at the Kaiser Wilhelm Institute for Chemistry in Berlin, conducted an experiment the results of which baffled him. It took his émigré collaborator Lise Meitner to explain that he had split an atom of uranium, which at the time seemed to defy all known laws of physics.

On July 16, 1945, just weeks before the atomic bombing of Hiroshima and Nagasaki that brought about the surrender of Japan and the end of World War II, the United States unleashed the world's first atomic bomb at the Trinity testing site located in the remote Tularosa Valley in south-central New Mexico. Immensely more powerful than any weapon the world had seen, the bomb's effects on the surrounding and downwind communities of plants, animals, birds, and humans have lasted decades.