This Cold War calculator was designed by William Orr of the University of Connecticut in 1950-1. The calculator was commissioned by the Connecticut State Office of Civil Defence and made by Consolidated Nucleonic. They were sold to the public for $1.
Orr’s calculations and assumptions were used in the design of many other Cold War calculators.
A military version of Orr’s Radiation Dosage Calculator, the ABC-M1A1, was used by the US Army after modifying the instruction to suit military users. The calculator was used to determine radiation dosages after a nuclear explosion.
For more posts about Cold War calculators click on the Cold War Calculators category on the right.