It was 8:15 a.m. August 6th, 1945, when a young engineer named Tsutomo Yamaguchi who was on his way to work looked up and spotted a plane soaring over Hiroshima. A small object attached to two parachutes fell from the plane and the next thing Yamaguchi remembered was a huge flash of light. That was Little boy, a 13-kg atomic bomb that destroyed much of Hiroshima.
Yamaguchi had been sent to Hiroshima three months earlier by his boss at Mitsubishi to work on an oil tanker. Little Boy was dropped just two days before Yamaguchi was scheduled to finish the job and go back to his family in Nagaski.
Yamaguchi, who was 29 at the time, was badly burned and spent a night in a shelter with his colleagues. The next day, in an effort to return home, he swam through a river filled with the bodies of men, women, and children. These disturbing images will remain with him until his death. Eventually, he managed to get to the train station which surprisingly was still running. Yamaguchi returned to Nagasaki and went to the hospital to treat his burns. 24 hours later he returned to work. While in the middle of explaining to the boss what had happened in Hiroshima, Yamaguchi witnessed once again an atomic explosion.
The second atomic bomb, Fat Man, was supposed to explode over Kokura, but due to weather conditions was drooped on Nagasaki.
The explosion killed 40,000 people instantly and tens of thousands later died from long-term health effects.
Yamaguchi, who was inside a shelter, survived along with his wife and five-month-old son.
He died at the age of 93.