The Project Gutenberg EBook of The Atomic Bombings of Hiroshima and
Nagasaki, by United States

This eBook is for the use of anyone anywhere at no cost and with
almost no restrictions whatsoever. You may copy it, give it away or
re-use it under the terms of the Project Gutenberg License included
with this eBook or online at www.gutenberg.net

Title: The Atomic Bombings of Hiroshima and Nagasaki

Author: United States

Posting Date: August 3, 2008 [EBook #685]
Release Date: October, 1996

Language: English

Character set encoding: ASCII

*** START OF THIS PROJECT GUTENBERG EBOOK ATOMIC BOMBINGS, HIROSHIMA, NAGASAKI ***

Produced by Gregory Walker

For an HTML version of this document and additional
public domain documents on nuclear history, visit
Trinity Atomic Web Site:
http://www.envirolink.org/issues/nuketesting/

THE ATOMIC BOMBINGS OF HIROSHIMA AND NAGASAKI

by The Manhattan Engineer District, June 29, 1946.

Index

FOREWORD
INTRODUCTION
THE MANHATTAN PROJECT INVESTIGATING GROUP
PROPAGANDA
SUMMARY OF DAMAGES AND INJURIES
MAIN CONCLUSIONS
THE SELECTION OF THE TARGET
DESCRIPTION OF THE CITIES BEFORE THE BOMBINGS
Hiroshima
Nagasaki
THE ATTACKS
Hiroshima
Nagasaki
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
BURNS
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

FOREWORD

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.