On the outside chance that you are not familiar with the importance of synchrotrons, you might want to head to the Kavil Auditorium in Menlo Park on May 20 at 3:30 for a talk by Laura Green of the National High Magnetic Field Laboratory. This stuff is headier than complicated computations, being research on high magnetic fields in physics. chemistry and biology. The lab is the only one of its kind in the country and a center for developing superconducting materials. Keep your brain screwed on tightly. Free.