Videos

Professional "free divers" have no trouble holding their breath for minutes at a time. What stops us from doing the same? In this episode, Scientific American's Katherine Harmon--and Katherine Harmon--explore the limits of human physiology.

In an energy-hungry world, nuclear fission and fusion are often mentioned as alternatives to fossil fuels. But which one is better? In this episode, Scientific American's Michael Moyer melts down the facts to get at the core of the issue.

Reading the emotions of others is essential for even the most basic social skills. Here’s how our brain combines information from multiple senses to decipher another person's mood.

Go behind the scenes with artist James Gurney to see how he created the illustrations for "Dinosaurs of the Lost Continent", a feature article in the March issue of Scientific American.

This Valentine's Day, Scientific American traces the flow of chemicals in the brain during different phases of romance and describes surprising insights from the science of attraction.

In this dramatized film, Scientifc American editors George Musser and John Matson try to fool a colleague into thinking their brains are quantum-entangled.

What new technologies might be incorporated into New York City's surveillance network, the 'Ring of Steel'? Computer scientist Chris Bregler thinks that detecting motion signatures, our unique body movements, is the wave of the future.