The Atomic Bombings of Hiroshima and Nagasaki

The Atomic Bombings of Hiroshima and Nagasaki

by The Manhattan Engineer District




This report describes the effects of the atomic bombs which were dropped on the Japanese cities of Hiroshima and Nagasaki on August 6 and 9, 1945,
respectively. It summarizes all the authentic information that is available on damage to structures, injuries to personnel, morale effect, etc., which can be released at this time without prejudicing the security of the United States.

This report has been compiled by the Manhattan Engineer District of the United States Army under the direction of Major General Leslie R. Groves.



The Manhattan Project Investigating Group


Summary of Damages and Injuries

Main Conclusions

The Selection of the Target

Description of the Cities Before the Bombings



The Attacks



General Comparison of Hiroshima and Nagasaki

General Description of Damage Caused by the Atomic Explosions

Total Casualties

The Nature of an Atomic Explosion

Characteristics of the Damage Caused by the Atomic Bombs

Calculations of the Peak Pressure of the Blast Wave

Long Range Blast Damage

Ground Shock

Shielding, or Screening, from the Blast

Flash Burn

Characteristics of Injuries to Persons


Mechanical Injuries

Blast Injuries

Radiation Injuries

Shielding from Radiation

Effects of the Atomic Bombings on the

Inhabitants of the Cities

Appendix: Father Siemes' eyewitness account

Product Details

ISBN-13: 9781494322069
Publisher: CreateSpace Publishing
Publication date: 11/30/2013
Pages: 100
Product dimensions: 6.00(w) x 9.00(h) x 0.21(d)

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