• A. How was the atomic bomb created?
  • Only U235 is used in the production of an atom bomb.
  • B. Why did Truman decide to drop the atomic bomb?

The dropping of the atomic bomb was a momentous event in history.

D. What was the effect of the dropping of the atomic bomb?

Was the United States justified in the dropping of the atomic bomb.

What caused the United States to build the bomb and why was it that it was deemed necessary?

The race for the atomic bomb ended with the May 1945 surrender of Germany, the only other power capable of creating an atomic bomb in the near future.

An eye witness account of the Hiroshima atomic bomb

With a nuclear weapon like the atomic bomb, came great responsibility.
Finally, the most human reason for constructing such a lethal bomb was that it would save the lives of thousands of American soldiers scheduled to invade Japan.


They do not think the atomic bombs were a necessity.

He replied that he saw no military justification for the dropping of the bomb.
The report questioned the ability of destroying Japanese cities with atomic bombs to bring surrender when destroying Japanese cities with conventional bombs had not done so.

The Franck Committee, which could not know that the Japanese government would approach Russia in July to try to end the war, compared the short-term possible saving of lives by using the bomb on Japan with the long-term possible massive loss of lives in a nuclear war:"...looking forward to an international agreement on prevention of nuclear warfare - the military advantages and the saving of American lives, achieved by the sudden use of atomic bombs against Japan, may be outweighed by the ensuing loss of confidence and wave of horror and repulsion, sweeping over the rest of the world...".

The making of the atomic bomb was prompted by three main reasons.

of War Stimson informed President Truman on April 25, 1945, that one atomic bomb "could destroy a whole city" (Stimson diary, 4/25/45), perhaps presenting evidence from the Trinity test.

The atomic bomb was created after many years of the study of atoms.

Fortunately, the Allies had a drastic weapon; on July 16, 1945 the atomic bomb had been tested successfully in New Mexico (the Trinity test) and was ready to be used.

This was the basis for the atomic bomb.

In a June 18, 1945 meeting with Truman and his military advisors, argued that Japan should be permitted to retain the Emperor and should be given a warning of the atomic bomb in order to bring an earlier and less deadly surrender (Walter Millis, ed., , pg.

Even before the bomb was dropped, Japan was struggling.

Even though the atomic bomb could be considered a diabolical weapon, many people in the United States felt that after what Japan did to Pearl Harbor the Japanese deserved everything they would get [Chappell p.105].

Although the atomic bomb was a terrible weapon, it had precedents.

This led some Manhattan Project scientists in Chicago to become among the first to consider the long-term consequences of using the atomic bomb against Japan in World War II.

Lastly, this site will cover the testing of the first Atomic bomb.

In later years, these people viewed the atomic bomb as unnecessary because they thought that if the Allies simply continued their firebombing raids on Japan and establishing a blockade, then the war was as good as won for the Allies.