This web site is a basic, non-mathematical introduction to relativity. It covers concepts from Galileo, Newton, and Maxwell through Einstein and special relativity. The site also mentions modern topics such as the...

Authored and curated by David P. Stern, this is a lesson plan for teaching frames of reference. It is linked to text material on reference frames, aberration of light, and a very short introduction to the foundations of...

This web page, authored and curated by David P. Stern, describes forces in rotating frames of reference and the effects of the coriolis and centrifugal forces. A lesson plan is provided for instructors. This web page...