Read this page, and click on the links "From Thrilling Toy to Important Tool," "Microscopy Time Line," and "Resolving Power Line" to read these pages as well. You can always return to the starter page by hitting the "Back" button on the top right corner of the window. From the main page, click on the links "Phase Contrast Microscopes," "Fluorescence Microscopes," "Transmission Electron Microscopes," and "Scanning Tunneling Microscopes," and study these pages to learn about modern microscope techniques.