Uncertain

Stanford University biologist Sharon Long, a science advisor to the Barack Obama campaign, talks about science in the upcoming administration. Plus, we'll test your knowledge of some recent science in the news. Web sites related to this episode include www.SciAm.com/report.cfm?id=election2008

For Halloween, we take a tour of Woodlawn Cemetery in the Bronx, N.Y., with geologist Sidney Horenstein and Woodlawn expert Susan Olsen, concentrating on the geology of the rock used in the memorials. Plus, we'll test your knowledge of some recent science in the news. Web sites related to this episode include www.bigpumpkins.com; www.thewoodlawncemetery.org

Scientific American magazine editor in chief, John Rennie, talks about the November issue's contents, including computer-brain interfaces, DNA computing, the ongoing attempts to find an HIV vaccine and getting closer to the Star Trek tricorder with portable NMR. Plus, we'll test your knowledge of some recent science in the news. Web sites mentioned on this episode include snipurl.com/4LJ71; SciAm.com/sciammag

Harvard School of Public Health epidemiologist Walter Willett talks to SciAm correspondent Cynthia Graber about his latest book, The Fertility Diet as well as about the links between nutrition and health generally. Plus, we'll test your knowledge of some recent science in the news

Carl Zimmer continues his discussion of E. coli, the bacteria that are the subject of his new book Microcosm: E. Coli and the New Science of Life. Plus, we'll test your knowledge about the Nobel Prizes awarded this week. Web sites mentioned in this episode include www.carlzimmer.com; improbable.com; nobelprize.org

Author and journalist Carl Zimmer talks about E. coli, the bacteria that are the subject of his new book Microcosm: E. Coli and the New Science of Life. Web sites mentioned in this episode include www.carlzimmer.com

Author and journalist Carl Zimmer talks about the search for the physiological and biological basis of intelligence, the subject of his article in the October issue of Scientific American magazine. And Editor in Chief John Rennie discusses other articles in the issue, including the cover story on the possibility of a big bounce instead of the big bang and the science of the World Wide Web. Plus, we'll test your knowledge about some recent science in the news. Web sites mentioned in this episode include www.SciAm.com/sciammag; www.carlzimmer.com

Scientific American editor Mark Fischetti talks about Earth 3.0, a new SciAm publication concerning energy, sustainability and the environment. And ScientificAmerican.com writer Larry Greenemeier discusses the interface between nanotech and biology. Plus, we'll test your knowledge about some recent science in the news. Web sites mentioned in this episode include www.sciamearth3.com

Nobel Prize-winning physicist Frank Wilczek and Scientific American editor George Musser talk about the Large Hadron Collider, the most powerful particle accelerator ever built, which went online this week. Plus, we'll test your knowledge about some recent science in the news. Web sites mentioned in this episode include www.frankwilczek.com; www.youtube.com/watch?v=j50ZssEojtM; http://www.sciam.com/report.cfm?id=lhc-countdown

Pulitzer Prize-winning New York Times columnist Tom Friedman discusses his new book, Hot, Flat, and Crowded: Why We Need a Green Revolution--And How It Can Renew America. Plus, we'll test your knowledge about some recent science in the news. Web sites mentioned in this episode include www.thomaslfriedman.com

Scientific American editor in chief, John Rennie, discusses the future of privacy and security, the subject of the September single-topic issue of Scientific American magazine. Plus, we'll test your knowledge of some recent science in the news. Web sites mentioned in this episode include www.SciAm.com/sciammag; www.snipurl.com/sciamfootball

Veteran journalist Merrill Goozner, director of the Integrity in Science project at the Center for Science in the Public Interest, discusses his series of articles for SciAm.com on the rise of tuberculosis in Russia. Plus, we'll test your knowledge of some recent science in the news. Web sites mentioned in this episode include www.gooznews.com; www.snipurl.com/goozner