Kate Wong brings us up to date on the ongoing research into fossils of the tiny human, called the Hobbit, found on the island of Flores. And Ivan Oransky reports from the Intel International Science and Engineering Fair. Plus, Nobel laureate Gerald Edelman illustrates problems with reductionism and refrigerators. And we'll test your knowledge of some recent science in the news. Web sites mentioned on this episode include www.SciAm.com/daily, www.nybg.org/darwin/symposium.php, www.intel.com/education/ISEF