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  2. Famous Scientists and their inventions | Inventors and their inventions Part-1

    Famous Scientists and their inventions | Inventors and their inventions Part-1

  3. The greatest scientific advances from the Muslim world

    The greatest scientific advances from the Muslim world

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  4. The Flying Train, An Old World Suspended Rail, Germany, 1902

    The Flying Train, An Old World Suspended Rail, Germany, 1902

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