Gravitational Lensing with Wineglasses
http://www.slac.stanford.edu/~pjm/lensing/wineglasses/Explains how gravitational lensing can be simulated using wine glasses as (unusually-shaped) glass lenses. Includes images and diagrams to explain the different phenomena gravitational lensing can produce. By Phil Marshall (Stanford University).
Submitted in section: Physics: Relativity: Gravitational Lensing: Gravitational Lensing with Wineglasses