This online video is an animation of carrier flow in a semiconductor. Electrons move about on both sides of the substrate, and positive and negative poles are shown. The semiconductor is sandwiched in-between opposing...

The 2005 Nobel Prize for Chemistry celebrated molecules that are of great value to researchers, to the broader society, and to chemical educators. Some of those molecules are featured here.

This video, the first of its kind, was captured by a special probe fitted with seven cameras to provide vertical and 360-degree views of an approaching tornado. Students can see and hear an F4 tornado as it approaches,...

With a mandate from the American Statistical Association, the Consortium for the Advancement of Undergraduate Statistics Education (CAUSE) has a simple, yet daunting, mission: "to support and advance undergraduate...

This video documents an experiment conducted in Kane Cave, Wyoming, to see if microbes that inhabit the cave could actually be contributing to the cave-formation process. Adapted from a NOVA broadcast, the segment is...