ATOMIC BOMB OF HIROSHIMA AND NAGASAKI

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1. Manhattan Project

2. Release and consequences

3. CAUSE

4. On December 18, 1941, a few days after the attack on Pearl Harbor, the commission met with a group of prominent figures such as Arthur Compton, Eger Murphree, Harold Urey and Ernest Lawrence, who decided the techniques for the extraction of uranium 235 and design nuclear reactors.

5. The atomic bomb was developed by the Manhattan Project, to obtain the superiority of the armaments of the United States and the end of the Second World War.

6. The project was authorized by President Roosevelt and built and then launched in Japan in 1945 by order of President Harry Truman. In its construction participation geniuses of science as Albert Einstein, Enrico Fermi, Niels Bhor and others.

7. Launched over the city at 8:15 am, Little Boy dropped by 56 seconds to detonate at a calculated altitude of 1,900 feet with an explosive force equivalent to 13-15 kilotons of TNT.

8. It created a destruction area a few miles in diameter while the blast wave and the firestorm destroyed approximately 4.7 square miles. 70,000 to 80,000 people died and another 70,000 were injured.