Diane Ravitch was a strong proponent of charter schools and the No Child Left Behind program. She now recognizes the political agenda behind all the recent school cuts and has changed her mind.
Intelligent. Optimistic. Curious.
Audio
Brian Palmer has been a staff writer at Fortune magazine, Beijing bureau chief for US News and World Report and a correspondent for CNN. He tells Anne Strainchamps that none of that prepared him for Iraq where he was embedded with the First Battalion/Second Marines.
For decades, urbanists have been thinking about cities as organisms. They take in resources, eject waste, spread and grow. Theoretical physicist Geoffrey West decided to put the idea through the mathematical ringer. So, are cities like organisms? Yes. And no.
You can also hear the uncut interview with West.
Welcome to the wonderful, wild mind of Monty Python's Terry Gilliam, who went on to direct the acclaimed films "Brazil," "Time Bandits" and "12 Monkeys." In an interview that can only be described as "Gilliamesque," Doug Gordon talks to the comedy legend.
Are humans hard-wired to forgive? Psychologist Michael McCullough's research traces the evolutionary roots of forgiveness and revenge.
Contemplating the multiverse is mind-blowing, but if you want a truly earth-shattering controversy in physics, you have to go back 500 years to Copernicus' radical theory. Dava Sobel tells his story.
Daniel Levitin is a neuroscientist with a twist; he's also a musician and record producer. He says brain imaging is showing how our brains listen to and make music.
Physicist Michio Kaku's Dangerous Idea? A virtual "library of souls."
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