(Baonghean.vn) - The atomic bomb is the most powerful weapon of mass destruction in human history, causing horrific casualties and long-lasting impacts.
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| The letter from the physics genius Albert Einstein to the US President is considered the origin of the American atomic bomb project. Specifically, one month before World War II broke out, Albert Einstein wrote a two-page letter to US President Franklin D. Roosevelt. |
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| In a letter written in 1939, Einstein warned U.S. President Roosevelt that a nuclear chain reaction involving uranium could create a new, extremely powerful type of bomb: the nuclear bomb. |
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| Physicist Einstein also stated that three chemists in Germany were close to successfully creating a weapon – a giant bomb that would change the course of the world. |
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| After receiving Einstein's letters, in 1942, the United States launched the Manhattan Project to design and manufacture nuclear weapons. Although Albert Einstein's letters prompted US officials to push forward with the most powerful weapon of mass destruction in history, the physicist himself did not participate in the Manhattan Project. |
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| According to estimates, the US spent approximately $2 billion on the Manhattan Project. More than 200,000 people, including experts and 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 the destructive power 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 also the only country in the world to have suffered the horrific devastation of this weapon of mass destruction. |
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| Because on August 6, 1945, the United States dropped its first atomic bomb, codenamed "Little Boy," on Hiroshima. It is estimated that approximately 80,000 people died instantly after the "Little Boy" bomb exploded. |
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| On August 9, 1945, the second atomic bomb, codenamed "Fat Man," was dropped by the United States on the city of Nagasaki, killing 70,000 people. |
Kim Ngoc
(Synthetic)
