Uncertain

In this episode, author and journalist Carl Zimmer talks about his Scientific American article Evolved For Cancer?, which looks at how natural selection has led to what appears to be an inevitable tendency for human beings to develop the disease. Dmitry Vaintrob, winner of the 2006-07 Siemens Competition in Math, Science and Technology for high school students, talks about his project in string topology. Plus we'll test your knowledge about some recent science in the news. Websites mentioned on this episode include www.sciam.com/podcast; www.carlzimmer.com; www.siemens-foundation.org

In this episode, journalist Chip Walter, author of Thumbs, Toes and Tears, takes us on a tour of the physical traits that are unique to humans, with special attention to crying, the subject of his article in the current issue of Scientific American MIND. The University of Cambridge's Gordon Smith discusses the alarming lack of any randomized, controlled trials to determine the efficacy of parachutes. Plus we'll test your knowledge about some recent science in the news. Websites mentioned on this episode include www.sciammind.com; www.chipwalter.com; www.bmj.com.

In this episode, robotics writer Daniel Wilson talks about his book How To Survive A Robot Uprising: Tips On Defending Yourself Against The Coming Rebellion. Naturalist Kurt Auffenberg from the University of Florida talks about wrangling Komodo Dragons. Plus we'll test your knowledge about some recent science in the news. Websites mentioned on this episode include www.sciam.com/podcast; www.sciam.com/news; www.danielhwilson.com; www.robotuprising.com; www.sciamdigital.com; http://www.sciam.com/article.cfm?chanID=sa006&colID=1&articleID=9312A198-E7F2-99DF-31DA639D6C4BA567

In this episode, Michigan State University historian of science Kristie Macrakis discusses the use of radioactive isotopes in the cloak and dagger world of cold war espionage, and what it tells us about the polonium poisoning of Alexander Litvinenko. We'll also hear a Christmas poem dedicated to the graduate students and postdocs who burn the midnight oil even on Christmas Eve. Plus we'll test your knowledge about some recent science in the news. Websites mentioned on this episode include blog.sciam.com; www.sciam.com/podcast; www.sciam.com/news

In this episode, Nobel Prize winner Harold Varmus talks about the challenges facing the U.S. in science and technology competitiveness and some possible plans of action, related to the Brookings Institution's Hamilton Project. And the American Museum of Natural History's Jin Meng discusses a major new fossil find, a flying mammal some 130 million years old. Plus we'll test your knowledge about some recent science in the news. Websites mentioned on this episode include www.sciam.com/podcast; www.sciam.com/news; www.sciamdigital.com; www.hamiltonproject.org; www.amnh.org/science; www.nature.com.

In this episode, Leiden University bird song expert Hans Slabbekorrn notes the changes in bird vocalizations when they move from the forest to the city. And we wrap up our series on Scientific American magazine's "SA 50" citations with Ivo Menzinger, managing director of sustainability and emerging risk management for the reinsurance company Swiss Re. Plus we'll test your knowledge of some recent science in the news. Websites mentioned on this episode include www.sciam.com/podcast; www.sciam.com/news

In this episode, MIT Communications Forum Director David Thorburn discusses the future of newspapers and news in light of new technology. Scientific American editor Steve Ashley talks about the magazine's "SA 50" picks in the areas of automobile and fuel technology advances. And we'll test your knowledge of some recent science in the news. Websites mentioned on this episode include www.sciam.com/podcast; web.mit.edu/comm-forum; web.mit.edu/comm-forum/forums.html

In this episode, Scientific American's "SA 50" research leader of the year, MIT's Angela Belcher, discusses her work using viruses and other organisms to help create nanoelectronics. Animal behaviorist and turkey expert Richard Buchholz brings us up to date on some turkey science. And we'll test your knowledge of some recent turkey science in the news and outer boroughs. Websites mentioned on this episode include http://home.olemiss.edu/~byrb; www.sciam.com/podcast

In this episode, Scientific American editor-in-chief John Rennie talks about the World Science Forum, held in New York City last week. Forum speaker Mike Roco, nanotechnology advisor to the National Science Foundation, shares some thoughts about our tiny tomorrow. Chemist Roald Hoffmann reads his own poetry and discusses the importance of fuzzy thinking in science. And we'll test your knowledge of some recent science in the news. Websites mentioned on this episode include blog.sciam.com; www.sciam.com/podcast; www.hsm-us.com/wsf; www.roaldhoffmann.com

In this episode, Scientific American Mind executive editor Mariette Dichristina talks about a special section of the magazine devoted to the roles of gestures and facial expressions in communications. A panel discussion of government secrecy at the annual meeting of the Society of Environmental Journalists featured climate researcher James Hansen; we'll play some highlights from his comments regarding secrecy and science. Plus we'll test your knowledge of some recent science in the news. Websites mentioned on this episode include www.sciammind.com; www.sciam.com/news; www.sciam.com/podcast; http://www.columbia.edu/~jeh1/

In this episode, journalist Larry Tye talks about his new book, SHOCK, written with electroshock patient Kitty Dukakis, wife of former governor and presidential candidate Michael Dukakis. Following Tye, Charles Welch, director of the Massachusetts General Hospital electroconvulsive therapy program, discusses the treatments knowns and unknowns. Then Scientific American editor Christine Soares shares some insights about an unusual stem cell research conference held last week in New York City. Plus we'll test your knowledge of some recent science in the news. Websites mentioned on this episode include www.egrandslam.com; www.sciam.com/news; blog.sciam.com.

In this episode, evolutionary biologist Sean Carroll talks about his new book, "The Making of the Fittest: DNA and the Ultimate Forensic Record of Evolution." Even without fossils or comparative anatomy, vast amounts of evidence for evolution and its mechanisms exist in the genomes of the organisms alive today. Carroll discusses immortal genes, fossil genes and repetition in evolution, as well as environmental issues in light of evolutionary understanding. Plus we'll test your knowledge of some recent science in the news. Websites mentioned on this episode include www.seanbcarroll.com; www.egrandslam.com; www.pbs.org/wgbh/amex/babies; www.sciam.com/news; www.sciam.com/podcast