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When evangelical Christians say they talk to God, what do they mean? Anthropologist Tanya Luhrmann wanted to find out.

"Religion always starts with mysticism," says David Steindl-Rast. Now 89, he's been a Benedictine monk since 1953. 

Getting a good night's sleep is hard for a lot of people, but imagine trying to drift off when you have terrifying hallucinations.

Betsan Corkhill founded Britain's therapeutic knitting movement — the clinical application of knitting to treat a variety of mental and physical ailments. 

First it was vinyl; now, it's the typewriter. Vintage Smith-Coronas and Olivettis are hot items on Ebay and making a comeback in the age of computers. Philosopher Richard Polt assesses the typewriter revolution.

The celebrated cartoonist Lynda Barry has a deep theory of creativity that she's explored through books and popular workshops.  

Wade Davis has been called the Indiana Jones of anthropology. He says the aboriginal people of Australia have a fundamentally different way of seeing the world than we do in modern society.

Africa needs to reclaim its history and its technology, says Clapperton Mavhunga, a native of Zimbabwe who's a professor in MIT's Program in Science, Technology and Society. He says the traditional hunt is a great example of how Africans have passed on generations of knowledge.

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