Current Classes taught by Sam Wormley (multiple institutions)     PHS 142 M01 Principles of Astronomy       Digital Photography - Point and Shoot Basics   olli.dp1   mcc.dp1     Digital Photography - Field Shoots   olli.dp3   AmesPhotoWalk     An Illustrated Guide to Relativity     Voyages of Discovery: Copernicus to the Big Bang     Digital Photography - for Photojournalists     Digital Photography - Advanced dSLR Level   olli.dp2     Home Computer Security     Mac OS X - Leopard, Snow Leopard & Lion     iPhone, iPad and iPod-Touch     Iowa Weather     Global Climate Change Resources