This Resource Letter provides a guide to physics demonstrations, computer simulations of physics demonstrations, and physics education research regarding the use and effectiveness of demonstrations and simulations. Articles, books, and materials on the internet are cited for the following: professional journals dealing with demonstrations, web sites of professional organizations, workshops including use of demonstrations and simulations, books dealing with demonstrations in classroom teaching as well as informal settings, web sites for physics demonstrations, videos of physics demonstrations, demonstration simulations, and physics education research regarding the use of demonstrations in teaching.

We show how to embed spacelike slices of the Schwarzschild wormhole (or Einstein-Rosen bridge) in 3. Graphical images of embeddings are given, including depictions of the dynamics of this nontraversable wormhole at constant Kruskal times up to and beyond the “pinching off” at Kruskal times ±1.

The phase shift that occurs upon reflection from a dielectric surface is an interesting yet elusive topic in undergraduate and graduate level optics courses. Many students learn the Fresnel equations, which describe the theory of reflection-induced phase shifts, but there are few experiments which enable direct measurements of these phase shifts. We describe several experiments based on polarimetry to measure the differential phase shifts which occur upon reflection from dielectric–dielectric interfaces. Comparison of the experimental results with the theory given in optics textbooks reveals apparent inconsistencies, which can be resolved by taking into account various conventions.