Nuclear fission bomb

A nuclear fission bomb, requiring a critical mass of fissile material, was detonated successfully in New Mexico in 1945. This invention drastically changed the face of war due to its immense explosive power.
 J. Robert Oppenheimer United States 1945 Nuclear fission bomb

A nuclear fission bomb, requiring a critical mass of fissile material, was detonated successfully in New Mexico in 1945. This invention drastically changed the face of war due to its immense explosive power.