Electron Microscopy requires a different variation of light and can achieve up to 10,000,000 X magnification level. They have revolutionized microscopy and our viewing of the nature around us.
The most widely used form of microscopy and the beginning tool for observing the natural world. Optical microscopy is still in wide use today and has allowed us to observe bacteria and identify illnesses.
Scanning Probe Microscopy
Developed in the late 1980's this method is based on quantum mechanics. It is the highest level of microscopy even making single atoms visible.