The instructions state..."as a convenience to those interested in the effects of nuclear weapons, this circular computer was designed to make data easily available on various weapon effects - some as functions of both yield and range and others on yield alone...". And who would not want to know all that, right?
Nuclear Bomb Effects Computer - Front |
Nuclear Bomb Effects Computer - Rear |
These devices turn up regularly on eBay, although they can be a bit pricey. You can always Build Your Own Nuclear Bomb Effects Computer for a pittance.
The gadget found its way into the movies in the 1964 film Dr. Strangelove or: How I Learned to Stop Worrying and Love the Bomb.