Hi, what do you want to do?
PBS
Pbs Teachers: The Dark Side of the Universe: Doppler Shift [Pdf]
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.
Massachusetts Institute of Technology
Mit: Open Course Ware: Courses: Physics: Classical Mechanics
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...