answersLogoWhite

0


Best Answer

Because of their shapes. Fat Man used plutonium. A sphere of plutonium was surrounded by conventional explosives which were designed to send the force of their explosion inward to crush the sphere into a smaller shape (thus higher density) in order to trigger the nuclear reaction. Thus the bomb had a very rounded shape to it, suggestive of a fat man. In contrast the other bomb, which used uranium, had the nuclear reaction triggered by firing a small slug of uraniun down a track into a larger mass of the same element. Thus that bomb looked long and slender by comparison and so picked up the moniker Little Boy in contrast. Michael Montagne

User Avatar

Wiki User

8y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

14y ago
AnswerIt was the only available option to end WW2 that did not include the death of about a million Allied soldiers.

It was a terrible act, but understand that the citizens of Japan were ready to stand on the beaches with swords, pitchforks and any available weapons, allowing thousands more Allied troop casualties on order to protect their emperor (The Japanese people viewed the emperor as a god and would worship him and fight to the death for him). The two bombs ended the war and resulted in the unconditional surrender of Japanese forces.

Remember that the United States Government sent out letters to the Japanese civilians at Hiroshima and Nagasaki warning of a possible atomic threat but the Japanese government intercepted these and did not hand them out to the civilians.

This answer is:
User Avatar

User Avatar

Wiki User

12y ago

They needed code names for them.

This answer is:
User Avatar

User Avatar

Wiki User

11y ago

To end the war.

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why was fat boy dropped on nagasaki and little man on hiroshima?
Write your answer...
Submit
Still have questions?
magnify glass
imp