UM physics professor James Reidy, right, speaks into a light wave projected through the interferometer onto a wall as Ken Cecire, left, visiting Quarknet staff person from the University of Notre Dame, observes the effects. Five high school physics instructors attended a two-day professional development workshop on using e-labs and laser interferometers. The event was hosted by the University of Mississippi Department of Physics and Astronomy. (AP Photo/Ole Miss Communications, Robert Jordan) 0
