October 5, 2001

From his office at the University of Arizona in Tucson, seismologist Terry Wallace can monitor 500 seismic stations around the world. He talks with Todd about how he can use seismic information to monitor earthquakes, military exercises, and explosions anywhere in the world. It was Wallace who figured out that the accident aboard the Russian submarine, Kursk, actually occurred on Saturday, August 12, 2000, rather than on Sunday, the date given by Russian officials.

Dr. Michel Gagner, chief of laparoscopic surgery at Mount Sinai Medical Center in New York, talks with Todd about an historic surgery he and a team of surgeons recently performed. The team of surgeons in New York removed the gallbladder of a patient in France by sending high speed signals to robots. Dr. Gagner and Todd discuss what the possible applications of this kind of technology.

Paleontologist Doug Wolfe and his fossil hunting team have pieced together a detailed picture of an entire eco-system from the Middle Creaceous period. His fossil hunting team consists of his young son and his wife, Hazel. He talks with Todd about his remarkable finds and the techniques he and his family use to uncover rare fossils.