Nuclear Bomb Effects Computer (Including Slide-rule Design and Curve Fits for Weapons Effects) Page: 5
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Based on data from the 1962 edition of The Effects of Nuclear Weapons, a circular slide
rule was designed to evaluate 28 different effects of nuclear weapons. Of these 28 different ef-
fects, 13 relate to blast, 5 to thermal radiation, 1 to initial nuclear radiation, 2 to early fallout,
6 to crater dimensions, and 1 to fireball dimensions. Most of the parameters are presented as
functions of range and yield (1 kt to 20 Mt). Simple techniques are described which make it pos-
sible to estimate most of the effects parameters for yields greater than 20 Mt or smaller than
The report presents (1) curve fits of weapons-effects data, (2) design analysis for the slide
rule, and (3) instructions for use of the rule along with some of the implications of the data in
regard to biological and structural damage. The machine techniques are mentioned which were
used to prepare the original graphs necessary for the production of the slide rule.
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Fletcher, E. Royce; Albright, Ray W.; Perret, Robert F. D.; Franklin, Mary E.; Bowen, I. Gerald & White, Clayton S. Nuclear Bomb Effects Computer (Including Slide-rule Design and Curve Fits for Weapons Effects), report, April 1962; Washington D.C.. (digital.library.unt.edu/ark:/67531/metadc13048/m1/5/: accessed April 29, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.