Atom Bomb

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Atom Bomb
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• After Okinawa, a land invasion of Japan in
  next-Tokyo and other major cities being bombed
• Decision needs to be made on how to end war
  against Japan

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• Military experts estimate a possible million
  casualties
• Japan threatens to arm everyone!!!
• Truman considers use of powerful new weapon
  (a-bomb)

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• Next day

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• Potsdam Declaration- President Truman warns Japan
  of prompt and utter destruction if no surrender
  (late July, 1945)

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• No response
• Enola Gay- airplane piloted by Paul Tibbets-
  Hiroshima
• Hiroshima- August 6, 1945
• little boy dropped, killing 75,000

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Little boy
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• Nagasaki- August 9, 1945
• fat man dropped, killing 35,000
• Estimated 240,000 eventually die (total) due to
  initial bomb blast and after effects

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Fat man
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Hiroshima
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Nagasaki
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Nagasaki
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• Why Hiroshima?
• Hiroshima was chosen as the primary target since
  it had remained largely untouched by bombing
  raids, and the bomb's effects could be clearly
  measured. While President Truman had hoped for a
  purely military target, some advisers believed
  that bombing an urban area might break the
  fighting will of the Japanese people. Hiroshima
  was a major port and a military headquarters, and
  therefore a strategic target. Also, visual
  bombing, rather than radar, would be used so that
  photographs of the damage could be taken. Since
  Hiroshima had not been seriously harmed by
  bombing raids, these photographs could present a
  fairly clear picture of the bomb's damage.

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• After effects
• (scientists estimate only .1 percent of
  capabilities!!!)
• Japan surrenders on August 14, 1945

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Hiroshima one year later
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