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Q38. 1Al Edison's first invention wasdeclared a1-Disaster2-Success3-Machine4-Failurepls reply fast |
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Answer» ong>Answer: phonograph The American inventor announces his invention of the phonograph, a WAY to record and play back SOUND. Edison STUMBLED on one of his great inventions–the phonograph–while working on a way to record TELEPHONE communication at his laboratory in Menlo Park, New Jersey. |
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