The microscope has been, and continues to be, an important scientific tool. Much of what we know in science, and particularly in biology, we have learned by using microscopes.
There are three kinds of microscopes: simple microscopes, compound microscopes, and electron microscopes. Simple microscopes are much like magnifying glassesthey have one lens only. If a microscope has two lenses that work together, it is a compound microscope. Compound microscopes produce large, sharp, clear images. Electron microscopes use electrons and magnets instead of glass lenses. They are very powerful and can magnify up to two million times!
The Microscope Video Online teaches you how to use a compound microscope, and describes its different parts.
The Interactive Flash Demonstration allows you to become more familiar with the microscope through a thorough description of its parts. You can also conduct a virtual virtual slide viewing, complete with the ability to fine-tune the viewing of your slide using the adjustment knob.