Introduction to microscopes:

• Invention of the microscope is not credited to anyone. Actually, microscopes were byproducts of research on telescopes.

• First microscope: Van leeuwenhoek microscope (1600) shown in Figure 9.02, very simple and able to study the structure of tissue, and was one of the principal scientists to discover protozoa in water.

Figure 9.02: Typical view of Von Leeuwenhoek Microscope.

• Subsequently, the demand for microscopes for scientific use grew rapidly.

• Improvements in design came rapidly.

• Successful compound microscope by Zacharias Janessen (eye glass maker) (see Figure 9.03).