On August 6th, 1945, the world began a new age, the nuclear age. At 8:16, that morning, we got the loud power of our self-destruction. That was the Hiroshima bombing. Some days after, on August 9th, we got a new demonstration of our death power with Nagasaki. The catastrophe of the atomic bombs dropped on those two cities is one of the worst moments of our history. It meant the death of more than one hundred forty thousand people immediately or with in a few months after the drop. .
Leo Szilard, a physicist who lived in the United States, felt the incredible power of the recent scientific progress. Frightened by the Nazi threat and the technological power of Germany, he persuaded Einstein to write a letter to the President of the United States. In that letter, Roosevelt was informed about a new form of energy which could be used in bombs: the nuclear power. That letter convinced him to make the atomic bomb before Germany. The United States concealed its project to develop an atomic bomb under the name "Manhattan Engineer District." On July 2nd, Stimson wrote to the President, demanding that Japan be warned before using the A-bomb. The atomic bomb carried out the first successful atomic explosion on July 16, 1945, in a deserted area called Jornada del Muerto near Alamagordo, New Mexico. The Hiroshima Bomb measured in length three meters, and in diameter zero point seven meters. The bomb weight four tons and bomb contain a nuclear material called uranium 235. This bomb was named "Little Boy".
On August 6, 1945 the first atomic bomb was dropped, then later on August 9 the second bomb was dropped. It was then when Japan surrendered to the U.S. After the bomb was dropped, the American population was happy the war ended. Americans were tired by atrocities, privations and bombardments, and they didn't know the dreadful effects of atomic bombs. That poll showed that senior citizens still approve of the bombing, unlike younger Americans under the age of thirty.