In 1609-1610 the Italian scientist Galileo Galilei designed the first microscope, but only in 1624 he improved it so that it could be used. This microscope magnified the object by 35–40 times. A year later, I. Faber gave the device the name “microscope.”
In the years 1928-1931. An electron microscope was designed, due to which the smallest cell structure was described and many previously unknown structures were discovered. The development of biochemistry, genetics, electron microscopy methods, which appeared in the middle of the 20th century. a scanning electron microscope (and a number of other complex devices and techniques – phase contrast and fluorescence microscopy, interference microscope, etc.), as well as the widespread use of methods of physics and chemistry, determined the progress achieved at the end of the 20th century. in the study of the structure, functioning and reproduction of the cell.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.