Investigate how astronomers detect movements of stars by studying the Doppler effect on the star's light spectrum. Construct a model that illustrates this concept underlying red shift.

Colorful PBS site explores the Doppler Effect and the reading of absorption lines.

Investigate the Big Bang Theory of the origin of the universe by researching the light spectrum and the actions of light waves. Create models that illustrate red shift in a moving star and the expansion of the universe.

College-level online course highlighting the study of classical mechanics. This course focuses on Newtonian mechanics, fluid mechanics, and kinetic gas theory. Course features include a 35 video lecture series by Walter Lewin. Also link...