Apr 17, 2009 鈥 By 黑洞社区 News Services 鈥 芒鈧揇iscovery in science: What is possible, what is knowable,芒鈧 is at 4 p.m. Monday, April 27, in 127 Jabara Hall. Warren Pickett, a physics professor at the University of California-Davis, is the guest lecturer.