Why do fools fall in love? Helen Fisher has a few ideas. A biological anthropologist, Rutgers University research professor and advisor to Chemistry.com, Fisher explains her neurology-based theory of mutual attraction.
Dr. Bruce Conklin, Senior Investigator at the Gladstone Institute of Cardiovascular Disease, discusses the potential applications of stem cells in personalized medicine.
Noted psychologist Paul Ekman argues that humans are biased to see threats where they may not exist and have evolved to respond automatically to emotions without awareness.
A group of scientists discuss the growing international concern of space junk and debris originating from colliding satellites.
V.S. Ramachandran explains what causes amputees to have sensations in their phantom limbs, the parts of the brain called mirror neurons.
David Esterly contrasts how scientists build on the knowledge of those who came before to advance their understanding, whereas artists can feel held back by the work of their predecessors.
Enjoy this excerpt from science comedian Brian Malow's routine from Wonderfest 2009.
Viruses make up "about 8 or 9 percent" of our genome, notes science journalist Carl Zimmer. Zimmer explains how viruses throughout history have affected human evolution -- and, in fact, continue to affect us every day.
Andras Forgacs, Co-founder of Organovo, discusses the future of medical innovation: bioprinting, the process of creating human tissue cells.
While it may not sound sensible to play with rattlesnakes, toxicologist Patil Armenian identifies one group who seems intent on doing it anyway. Although rarely fatal, rattlesnake bites can be very painful... And don't let them bite you on the tongue.
Evolutionary biologist Richard Dawkins explains why he no longer debates creationists: he feels his presence only validates their status. "Would you, if you were a geographer, agree to have a debate with a flat-Earther?"
NASA chief scientist William J. Clancey discusses the lessons learned from the Mars Exploration Rovers "Spirit" and "Opportunity", and offers predictions for their latest rover, "Curiosity".
Anthropologist Dean Falk responds to an audience question about whether language or music evolved first, with the surprising answer that they may have evolved together.
Science educator Eugenie Scott explains the difference between empiricism-based knowledge and "revealed knowledge," gathered from a higher power. As an example of the latter, Scott cites one Hare Krishna organization's disbelief in the 1969 moon landing.
Philippe Dinkel, Director of the Geneva University of Music, explores the surprising and sometimes contentious overlap between artistic work and scientific research.
Biochemist Greg Petsko discusses the problem with living longer and the costs of caring for the growing number of patients in the U.S. with Alzheimer's and Parkinson's disease.
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