Here are the most commonly requested demonstrations from previous courses. These lists do not include every requested demo, repeats, individual instructor favorites, or one-off special requests.
Physics
114,
115,
116.
Textbook: College Physics: A Strategic Approach by Knight, Jones, and Field.
Physics
121,
122,
123.
Textbook: Principles and Practice of Physics by Eric Mazur.
Physics
224.
Textbook: An Introduction to Thermal Physics by Daniel Schroeder.