How to build a personal planetarium

Please join the Mt. Diablo Astronomical Society for our general meeting featuring award-winning educator and MDAS member Jeff Adkins, who will conduct a workshop on how to build a simple pinhole-based planetarium projector. Adkins, who teaches astronomy and physics at Deer Valley High School in Antioch, and at Los Medanos College in Pittsburg, will provide plans, templates and guidance for creating the projectors.