The destructive power of 'The Gadget'

24th April 1943: As they begin work in building an atomic bomb, theoretical physicists can only estimate just how powerful the new weapon will be

Los Alamos officially became a military establishment on 1 April 1943 - thousands of acres were acquired, roads were built and powerlines installed, to support a new township. The highly secret remote location enabled a gathering of scientists who could freely discuss the project as it developed.

The 24th April 1943 saw an important milestone in the the…