Cornell University
Cornell University: The Cesr Storage Ring
The Cornell Electron Storage Ring is a synchrotron electron accelerator. This website is a virtual tour of the facility.
University of Chicago
University of Chicago: Reflector and Refractor
From the Yerkes Observatory Virtual Tour web site. Compares and contrasts reflecting and refracting telescopes. A link from the page leads to a second page which explains why most modern research telescopes are reflecting telescopes.