French chemist Pierre Laszlo tells Steve Paulson that our bodies need salt to prevent dehydration and that removing the salt from seawater isn’t that hard, but it’s very expensive.
Intelligent. Optimistic. Curious.
Audio
Lawrence Krauss isn't only a famous physicist; he's also the subject, along with Richard Dawkins, of the documentary film "The Unbelievers." He tells Steve Paulson that science has replaced philosophy and religion as the place to deal with the Big Questions.
Stanford English professor Jay Fliegelman loves to collect books that have a history. He tells Jim Fleming why he loves the marginalia and battered pages of his books.
We made some particular choices about the music in hour four. Here's a note from Charles about the thinking that went into the score, and a Spotify playlist to explore.
Three physicists just won the Nobel Prize for their discovery that the universe is rapidly expanding.
Michael Perry is a writer and volunteer fireman who lives in the small town of New Auburn, Wisconsin. His memoir about his adventures on the rescue squad there is called “Population 485: Meeting Your Neighbors One Siren at a Time.”
We hear a conversation between Steve Paulson and German historian Jessica Gienow-Hecht. They discuss why the huge casualties among German civilians have been taboo for discussion.
"Everything You Know About Indians Is Wrong"
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