1. atomic bomb
The history of the atomic bomb dates back to the early 1900's when Einstein's theory of relativity proved a basis for understanding nuclear energy and showed that the atom contained vast energy. This energy seemed beyond men's grasp until the late 1930's. In 1939 scientists ... them with neutrons. They found that the split atoms released neutrons and energy. Physicists found that the fission of these atoms could produce a chain reaction. In the summer of 1939 Albert Einstein wrote a letter to President Roosevelt explaining the potential for atom-splitting devices in warfare as well as the po...
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- Approx Pages: 3
- Grade Level: High School