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   President Truman wanted the atomic bomb to be dropped on a city that has not suffered conventional bombing.  Four potential cities were looked at, including Kokura, Niigata, Nagasaki, and Hiroshima.  Each of these cities had not suffered conventional bombing and had military installations, making them perfect target to demonstrate the full capability of the atomic bomb.  Hiroshima was chosen to be bombed with the uranium bomb, Little Boy.  On August 5, the crews and bomb was ready.  The next day, Little Boy was loaded onto the B-29, named Enola Gay.  At 8:16 A.M. Hiroshima time, Little Boy exploded at 1,900 feet above a hospital.  The bomb produced an force equal to the amount of about 15,000 tons of TNT.  Near ground zero, most objects and buildings just disappeared.  The bomb created a giant firestorm, eating up all the oxygen in the air.  The bomb also created a shock wave, knocking down buildings and people several miles from ground zero.  People reported that they remember tripping over heads and seeing people without legs or arms but still alive.
    Little Boy killed over 100,000 people outright and wounded another 100,000.  Many were later killed from radiation.  Some were lucky and died a quick death but others died a long painful death lasting up to many years.  
    Japan still refused to surrender which lead Truman to prepare for the second bomb.  The city chosen for this bomb's target was Nagasaki.  Originally the date chosen was August 11, but it was moved ahead to August 9.  The morning of August 9, another B-29, Bock's Car, dropped Fat Man on Nagasaki.  The bomb exploded at a height of 1,650 feet with a force equal to about 22,000 tons of TNT.  Although the explosion force was greater, the damage done was a little less than Hiroshima because of surrounding hills that contained the explosion.  40,000 people were killed and 25,000 were injured.
    This bomb ended World War II.  The Japanese Emperor surrendered and agreed to the terms of the Potsdam Declaration.  Americans celebrated August 14 as Victory over Japan Day, otherwise known as VJ-Day.

Pictures from Hiroshima:
  * Atomic Dome at ground zero
  * Hiroshima ruins
  * Imprinted shadows
   

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Table of Contents
History of Nuclear Weapons main page

Development of Nuclear Fission

First Atomic Bomb & World War II
* Race for the Bomb
* Fuel for the Bomb
* Testing the Bomb
* The Difficult Decision
* The End of the War

Cold War

Present Technology


   
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