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Iowa State University
Iowa State University: Scanning Electron Microscopy
Information on the scanning electron microscope and how it works, accompanied by a library of images.
Nobel Media AB
The Nobel Prize: Electron Microscope Invention
The microscopes covered in depth at this site include the phase-contrast microscope, the electron microscope, and the scanning tunneling microscope. This site includes in-depth information on the microscopes, microscope simulators,...
Nobel Media AB
The Nobel Prize: Microscopes Help Scientists Explore Hidden Worlds
This is a site full of information about various microscopes and the objects and processes scientists study with them. Includes timelines and interactive simulations.
Other
Dennis Kunkel Microscopy, Inc.: The Virtual Sem
These pages use JavaScript to create the illusion of controlling a Scanning Electron Microscope (SEM).
Lawrence Berkeley National Laboratory
Berkeley Lab: Ncem: Electron Micrographs
This site contains a gallery of scanning electron micrographs of non living substance.
Other
Science Stock Photography
This site has numerous pictures of microscopic images. It also has a search engine so you can find specific objects. Images were captured with light microscopes, as well as electron microscopes.
Other
Scimat: Foods Under the Microscope
A technical site that describes different types of microscopes and delves into the chemical makeup of milk, yogurt, various various types of microorganisms. Impressive pictures supplement the text. Links to images of microorganisms.