am on August 6, 1945 when the Japanese city of Hiroshima was leveled by an atomic bomb. Three days later, the United States dropped a second bomb on Nagasaki, marking the first time humanity broke atoms in anger.
The atomic age began between heartbeats at Written by Craig Nelson. Narration by Dr. Nicholas B. Breyfogle. A textual version of this video is available at https://origins.osu.edu/milestones/august-2015-hiroshima.
