These web pages, authored and curated by David P. Stern, provide an explanation of forces in accelerating reference frames. Topics include centrifugal force and what is felt in vehicles that are speeding up or slowing...

The Acoustic Monitoring Project at NOAA is observing the ocean through underwater acoustics. At this site, visitors can learn about NOAA's studies in Bioacoustics, Ocean Seismicity, and Environmental Noise. The site also...

Dan Russell, a professor of Applied Physics at Ketting University, created this site to provide students animated images of sounds and vibrations produced by instruments such as loudspeakers and guitars. The site is...

This resource covers Seyfert galaxies, radio galaxies, BL Lacertae (BL Lac) objects, quasars, supermassive black holes, determining masses in galactic centers using the virial theorem, and a model for active galactic...

Active Learning Suite (ALSuite) is a highly interactive simulation-based online learning system for SMET education and corporate training. It uses real-life situations and objects, such as those related to the home,...