I am coordinator for exhibits and demonstrations at the new Challenger Learning Center to be located on the campus of the University of Tennessee at Chattanooga. Are ther mailing lists for the Challenger Learning Centers? Do you have any suggestions for demonstrations? The emphsis is on interactivity: hands-on experiences. Thanks, [log in to unmask] Physics Dept. The University of Tennessee at Chattanooga Chattanooga, TN 37403 615-755-4523