Microscope for Galileo Galilei in 1610

Humans have developed sense of view. However, are not visible to the naked eye things to measure less than a tenth of a millimeter. And many of the advances in chemistry, biology and medicine had failed if the microscope would soon to be invented.

                                     

First microscope was invented by a chance in experiments with lenses, invented a microscope with a sort of tube lenses at their ends, 8 cm long supported by three dolphins bronze; but got blurred images because of poor quality lenses. These first microscopes increased image 200 times.  These optical microscopes disallowed to enlarge the image more than 2000 times. Currently in effect tunnel them extend 100 million times.