Aired: Jan 11, 1998The passion and determination of medical science in the twentieth century. Dr...
A Science Odyssey
Season 1 Episode 5: Origins
1900: As the twentieth century dawns, scientists have few hard facts about the origins of Earth, humans, or life itself. Most believe the Earth was formed from material torn from the sun, and that as it cooled, its surface contracted, buckled, and cracked, creating mountains and oceans and causing earthquakes and volcanoes. We know little about our prehistoric ancestors. Our best clues are in the few ancient fossils recovered in Europe and Asia. The mechanism of evolution, by which physical t...
