Other
New Dana System Mineralogy Database
Over 3,900 mineral species descriptions are included in this HTML-linked table of Dana classifications for all known valid mineral species. 3-D models are available for over 600 minerals.
Curated OER
Ntnu Virtual Physics Lab: Thick Lens Java Applet
An interactive Java applet which allows the user to investigate the path of light through a lens shape object. The shape of the object, the index of refraction of the material, and the location of the incident rays can be altered.
Georgia State University
Georgia State University: Hyper Physics: Sound Propagation
This page and the many pages which are indexed to focus on the behaviors of sound which characterize it as a wave. Reflection, refraction, interference, diffraction and more are clearly illustrated and explained.