... 1942 so the country could develop an atomic device. A team under the command of United States Army Brigadier General Leslie R. Groves designed and built the first atomic bombs, directed by J. Robert Oppenheimer. This type of bomb was first tested at Alamogordo, New Mexico, on July 16, 1945. The amount of energy that was released by this explosion alone was equivalent to twenty ... ...

• Word Count: 946
• Approx Pages: 4

... 1941 established a secret program, which came to be known as the Manhattan Project, to develop an atomic bomb, a powerful explosive nuclear weapon. The aim of the project, directed by physicist J. Robert Oppenheimer, was to build an atom bomb before Germany did. After Roosevelt's death in April 1945, Harry S. Truman became president and inherited the bomb-development program. At this point, the new ... ...

• Word Count: 2288
• Approx Pages: 9
• Grade Level: High School