The Dutch lens maker, Zacharias Janssen in 1595 invented the first compound microscope. His microscope had lens at each end that consisted of two tubes that slid within one another. By sliding the tubes one can focus on the microscope.
The Dutch lens maker, Zacharias Janssen in 1595 invented the first compound microscope. His microscope had lens at each end that consisted of two tubes that slid within one another. By sliding the tubes one can focus on the microscope.
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