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The Great Tragedy: a "New Type of Bomb" Out of the Blue

Hiroshima had suffered no serious bombing, and August 6, 1945, began as just one more hot summer's day. Suddenly, at 8:15 a.m. the first atomic bomb ever experienced by a human population exploded directly above people going about their everyday lives. Tens of thousands killed instantly had no idea what happened to them.
Those left alive scrambled desperately to escape the spreading fire. Many who managed to reach safety found themselves badly burned and suffering from vomiting, diarrhea, fever and other acute effects of radiation poisoning. Most died in agony, never knowing why. In the all-engulfing turmoil, most survivors received neither adequate treatment nor information.


The Mushroom Cloud soon after detonation
August 6, 1945
Photo by Gonichi Kimura

One hour after detonation - Hiroshima in flames
August 6, 1945
Photo by Gonichi Kimura

In Hiroshima on the day of the bombing, 2,270 m from the hypocenter
August 6, 1945  Photo by Yoshito Matsushige

Still smoldering city
August 7, 1945  Photo by Mitsugi Kishida

Survivors who fled to this relief station
August 8, 1945
Photo by Mitsugi Kishida

Newspaper article dated August 7
Courtesy of Asahi Shimbun
The first report of the atomic bombing was extremely understated. "At approximately 7:50 a.m. two B29s flew over the city of Hiroshima." In Japan at that time, the military strictly censored all news. Almost daily US bombing raids were hardly mentioned at all.
  "It was an atomic bomb."
- A History of A-bomb Investigations -

 *Introduction
 *Atomic Physics and Radiation Research in Japan on the Eve of the Bombing
 *The Great Tragedy: a "New Type of Bomb" Out of the Blue
 *First surveys: looking through the confusion to confirm an "atomic bomb"
 *Damage surveys in the post-war turmoil
 *The Special Committee for the Investigation of A-bomb Damages
and Japan-US Joint Commission

 *A-bomb documentary film by Japan Film Corporation
 *A-bomb Investigations after the Occupation
 *The Role of A-bomb Research Today
 *Conclusion

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