-------------------------------------- In-class physics / astronomy projects: -------------------------------------- 1. Understanding eclipsing binary stars. Can loan Casti the necessary tabletop apparatus. Involves experimental measurements. Followed by interactive web interface developed/used by college instructors. Can be extended to include math and physics calculation of details of eclipse depth and shape. 2. Tidal effects. Start with a set of calculations of gravitational forces and differential gravitational (i.e. tidal) forces. Plot up the results and look for trends. Draw inferences from these trends - specifically, the fact that the Sun and Moon appear to be the same size from Earth and the fact that they exert comparable tidal forces on the Earth can be used to deduce that the average interior densities of the Sun and Moon are about the same! 3. Motion of stars in a disk. Use trigonometry to calculate the line-of-sight component of the velocity of stars in a spinning disk as a function of position. Make a 2D map of line-of-sight velocity. Try two extreme cases: solid body rotation (map in Cartesian coordinates) or differentially-rotating disk with a flat rotation curve (i.e., constant rotation speed; map in polar coordinates). It would be ideal is the students used the IDL sofware for this project. 4. Maximum likelihood method. A powerful mathematical procedure used to fit a function to data points. Will be used to study the details of how stars move within a galaxy. It would be ideal if the students used the IDL sofware for this project. [Students are also welcome to use IDL for the calculations in projects #1 and #2 - it would be an excellent way to gear up for the summer research internships.]