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(Anthony Von Leeuwenhoek, 16321723) manufacturing microscope let people big open horizon. Column since learning abraded glass lens singh grams of technology, keen to manufacture the microscope. He made a microscope is actually a burning, not pound microscope. However, because of his superb techniques, remedy monolithic microscope amplification nearly 300 times, more than any previous a microscope. When listed his microscope singh g on a drop of rain, he surprised to find one amazing little world: countless microbes swim drag in it. He put the findings report to the royal society of Britain, caused a sensation. Sometimes people listed the singh g known as the father of the microscope, strictly speaking, it39。s not quite correct. Singh had not been invented, listed the first pound microscope, his achievement is made of high quality convex lens. In the next two centuries, pound microscope got fully perfect, for example, people invented to eliminate the error of off color and other optical lens groups. And the 19 th century pared the microscope, now we use ordinary optical microscope basically no improvement. The reason is simple: the optical microscope has reached the limit of the resolution. If only on paper drawing, you will naturally be manufacturing out of any magnification microscopy. But the volatility of the light will ruin your perfect invention. Even if the shape of the lens eliminate defect, any optical instrument still can39。t perfect imaging.