Next month, voters in four states will consider whether to change laws regulating marijuana use. But how much is known about marijuana's effects on the body? Ira Flatow talks with psychiatrist Julie Holland, editor of a new collection of essays titled The Pot Book, about the plant.
At the same time Greg Graffin was starting the legendary punk rock band Bad Religion, he was becoming fascinated by evolutionary biology. Both would become lifelong pursuits. He talks about the connection in his new book, Anarchy Evolution: Faith, Science, and Bad Religion in a World Without God.
In 1985, when high-tech computing meant a Commodore 128, Jerome Wiesner and Nicholas Negroponte formed the MIT Media Lab, the birthplace of innovations such as e-ink for digital readers and the technology behind the game Guitar Hero. Negroponte talks about the lab's past, present and future.
In May 1958, Popular Science published an article titled "The Car that Drives Itself: The Car in Your Future Will Be Run By Black Boxes While You Watch." Sound familiar? Harry McCracken, founder and editor of Technologizer.com, discusses Google's self-piloted car, and dreams that came before it.
Reporting in the journal Science, Paul Kubes and colleagues filmed immune cells called neutrophils finding their way to a mouse's wounded liver. The researchers wanted to understand how neutrophils locate sterile injuries when bacteria aren't around to signal the damage.
This week, investors including Google announced a $5 billion plan to build an underwater transmission line off the East Coast. The line will tie power from offshore wind farms to the Eastern power grid. Willett Kempton, of the University of Delaware, explains the project.
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The Cassini spacecraft spotted icy plumes jetting from Saturn's moon Enceladus in 2005. Now researchers say a carbonated ocean may fuel the plumes. Science News reporter Ron Cowen talks about this and other news from a meeting of the American Astronomical Society's Division for Planetary Sciences.
Two Russian scientists won the Nobel Prize in physics this week for their work on graphene, a chicken-wire-like lattice of carbon atoms. Joseph Stroscio, of the National Institute of Standards and Technology, talks about why physicists are so fascinated by the material.
A recent report by the Centers for Disease Control and Prevention says two-thirds of Americans don't get the recommended two servings of fruit a day; three-quarters miss the target for vegetables. Ira Flatow and guests discuss ways Americans might be persuaded to eat more fresh produce.
Ira Flatow took Nissan's new electric-powered Leaf for a drive around New York City. This car runs on a rechargeable lithium-ion battery -- no oil or gas -- and with a new battery, the car can go between 60 and 130 miles on a charge. The car is set to go into production in the next few...
Computer scientists at Indiana University in Bloomington have developed a tool to track the flow of information in Twitter. The goal is to identify deliberately deceptive tweets, and trace them back to their origins. Researcher Johan Bollen explains how the analysis works.
A new study in the Annals of Internal Medicine suggests that dieters' sleep duration affects weight loss. Those who slept less lost more muscle than fat, while dieters who slept more took off more fat. Sleep researcher Michael Lacey explains how sleep relates to weight.
Add an extra "H" for "hypothesis" to the head, heart, hands, and health that make up the 4-H club motto. This week, 4-H chapters across the country are taking part in science experiments that aim to teach kids in rural and urban areas about water use and carbon footprints.
Science Friday listener Josh Scott is on a mission: He wants to get a pictorial history of space exploration tattooed on his arm. What missions or satellites should be included? Apollo? Hubble? Call in with your suggestions and help Scott get sleeved in space science style.