I'll be giving a talk in Second Life on Saturday at 10AM SLT (Noon CDT, 17:00 UT). This is part of the regular series Dr. Knop Talks Astronomy.
Double and Triple Stars: Solving the 3-Body Problem
If you look at the stars in the night sky, you discover that a very large fraction of them are not isolated, but are in fact in binary star systems, or even in larger groups. Using Newton's gravity, we are able to perfectly solve for the orbits of a system involving just two bodies, but it's impossible to analytically solve it for more. In this talk, I'll describe why we care-- not only in trinary star systems, but three-body interactions also matter in rich clusters. I'll describe how we're able to solve the 3-Body problem and figure out the orbits of stars in such system, and give a demonstration of a working computer that actually solves the system in Second Life, right before your eyes....
In related news, I've now uploaded the slides to all of my previous talks to the MICA website.