(Baonghean.vn) - The atomic bomb is the most destructive weapon in human history, causing terrible casualties and long-term effects.
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| The letter from physicist Albert Einstein to the US President is considered the origin of the US atomic bomb project. Specifically, 1 month before World War II broke out, Albert Einstein wrote a 2-page letter to US President Franklin D. Roosevelt. |
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| In a letter written in 1939, Einstein warned US President Roosevelt that a nuclear chain reaction involving uranium could create a new, extremely powerful bomb. That is the nuclear bomb. |
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| Physicist Einstein also said that three chemists in Germany are about to successfully create a weapon - a giant bomb that will change the world. |
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| After receiving Einstein's letter, in 1942, the United States launched the Manhattan Project to design and build nuclear weapons. Although Albert Einstein's letters prompted American officials to push ahead with the program to create the most destructive weapon in history, the physicist did not participate in the Manhattan Project. |
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| It is estimated that the US spent about 2 billion USD on the Manhattan Project. More than 200,000 people including experts, scientists... worked for the US government to build the atomic bomb. |
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| On July 16, 1945, the United States tested an atomic bomb with a yield of 18,000 tons of TNT in New Mexico. This test took place nearly a month before the world's first nuclear bombing. |
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| To date, the United States is the only country to have used atomic bombs in war, and Japan is the only country in the world to have suffered the terrible devastation of this destructive weapon. |
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| Because on August 6, 1945, the US dropped the first atomic bomb named “Little Boy” on Hiroshima. According to estimates, about 80,000 people died immediately after the “Little Boy” bomb exploded. |
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| On August 9, 1945, the second nuclear bomb named "Fat Man" was dropped by the US on the city of Nagasaki, killing 70,000 people. |
Kim Ngoc
(Synthetic)
