Cell Theory: Viewing Cells

Principle objective of this lecture is to present on Cell Theory; here briefly describe on Viewing Cells.  Zacharias Janssen was made 1st compound microscope. Leeuwenhoek was made a simple microscope (mid 1600’s) magnified 270X. Early microscope lenses made images larger but the image was not clear. This lecture also focus on Modern microscopes. A modern microscope is simple or compound depending on how many lenses it contains. A lens makes an enlarged image & directs light towards you eye.