The Timbie Group at the University of Wisconsin-Madison specializes "in the development and deployment of instruments capable of reaching the exquisite levels of sensitivity necessary to detect the very weak microwave signals constituting the Cosmic Microwave Background" (CMB). The website offers materials about the group's current and recent endeavors, including the Polarization Observations of Large Angular Regions (POLAR) and the development of Monolithic Silicon Bolometers and Miniature Adiabatic Demagnetization Refrigerator. Researchers can download many of the group's publications and find links to other research groups dealing with CMB. Students can find a tutorial dealing with the fate of the universe, an interactive periodic table, conversion tables, calculators, and other helpful tools.