In addition, scientists have also pointed out that the blasts took place mid-air - at 600m and 503m above ground - in Hiroshima and Nagasaki, respectively. Nowadays, the levels of radioactivity in both cities are on par with those recorded in other parts of the planet, otherwise known as "natural radioactivity". Uranium-235 has a half-life of 703 million years and Plutonium-239 has a half-life of 24,110 years. In the field of nuclear physics, half-life is defined as the amount of time it takes for a substance to decay to half of its original value.Ī substance with a low half-life is considered to have a high radioactivity.įor example, Iodine-131, which is considered harmful to humans and the environment, has a half-life of eight days. The video claimed that since these substances have a very long half-life, the radioactivity in both cities should be too high to allow for human habitation. In the first incident, the bomb made of Uranium-235 was used and in the second, the bomb was made from Plutonium-239. The bombing of Hiroshima and Nagasaki took place in 1945 on Aug 6 and 9, respectively. The clip lasting 48 seconds, asserted that this should have been impossible due to the presence of radioactive residues in the air. ![]() Recently, a video circulated on Facebook, claiming that the bombing never actually took place as the cities are now bustling economic and social hubs. The dropping of the atomic bombs by the US brought about the Japanese surrender, ending the war, albeit at a high cost to human lives. ![]() The attacks killed a total of 140,000 people in Hiroshima and 70,000 in Nagasaki, either due to the immediate impact of the explosion or the radiation exposure afterwards. NO ARMED conflict in recent history caused as devastating a consequence as the bombing of the Japanese cities of Hiroshima and Nagasaki in World War II.
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