- Hiroshima and Nagasaki are not radioactive anymore mostly because the bombs didn't touch the ground but were detonated in the air.
- A survivor of Hiroshima's atomic bombing went to Boston in 1951 and won the Marathon.
- Fat Man
- was the codename for the atomic bomb that was detonated over Nagasaki.
- A Bonsai Tree planted in 1626 survived the atomic bomb at Hiroshima and now resides in a U.S. Museum.
- A month after the nuclear bombing of Hiroshima, a typhoon hit the city killing another 2,000 people.
- 10% of US electricity is made from dismantled atomic bombs.
- The atomic bomb explosion at Hiroshima was generated by matter weighing no more than a paper clip.
- There's a nuclear bomb lost somewhere off the coast of Georgia.
- CT body scans expose the patient to the same amount of radiation as that experienced within a mile and a half of the Hiroshima atomic bomb.
- Barack Obama was the first sitting U.S. president to visit Hiroshima, 71 years after the atomic bomb.
- At least a dozen Americans were killed by the atomic bomb in Hiroshima, a fact that the U.S. did not acknowledge until the 1970s.
- During the Cold War the United States military misplaced at least 8 nuclear weapons permanently.
- The largest nuclear bomb ever detonated, the Tsar Bomba, was 1,400 times more powerful than Hiroshima and Nagasaki combined.
- The temperatures near the site of the bomb blast during the Hiroshima explosion were estimated to be 300,000°Celsius (540,000°Fahrenheit). That's 300 times hotter than the temperature bodies are cremated at.