Katherine Ellison says that pregnancy and motherhood change women's brains for the better, making them smarter, calmer and more competent.
Intelligent. Optimistic. Curious.
Audio
Optical Physicists at the Imperial College in London have created blueprints for the perfect hiding place.
British novelist Nick Hornby has written a funny book about suicide. It's called "A Long Way Down."
Who was the real Henry David Thoreau? He wasn't exaclty an environmentalist, and "Walden" didn't simply describe his time living by the pond. Jeffrey Cramer looks at the man behind the myth.
Kim Evans talks about her essay, "Charlie Kaufman, Screenwriter." The essay is from the book, "The Philosophy of Charlie Kaufman."
Robert Glasper's new album Black Radio is a reference to the black box of recordings that survives a plane crash.
Jim Cummings runs Earth Ear, an on-line catalogue of environmental sound-scapes. He talks about the new field of acoustic ecology.
Ray Kurzweil believes we'll soon have tiny computers embedded in our brains. He says we're on the verge of a new era in evolution - a fusion of biology and machine technology.
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