WHAT IS ENTROPY? "Entropy is disorder." You've learned this from popular culture, you've learned this in your physical science, chemistry, or biology class. But what does that *mean*? We have an intuitive sense for what "disorder" is, but how do you really define it rigorously for a scientific concept? There are two ways to approach […]

A tutorial on "Optics for photographers”. This tutorial is intended to teach practical optical concepts to persons who are photographers but have not had formal training in optics and may have acquired misleading notions from camera advertisements, the common talk on forums, and the like. The tutorial outline is shown below. Optics for Photographers by […]

Photo: JAMSTEC Where? Abyss Observatory in JOGrid (OpenSim) Enable your OpenSim access here hop://jogrid.net:8002/Abyss Observatory/491/302/140 Who? Hajime Nishimura, Japan Agency for Marine-Earth Science and Technology (JAMSTEC),           Yan Lauria, Museum director […]

Monthly panel discussion With this week as subject “Climate Change” Moderator: Matthew Burr - Beragon Betts       Panel participants: Keith Eric Grant Phil Youngblood William F. Wall   […]