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Choi: The thing that really drew my attention was work from roboticist Hod Lipson over at Cornell University. The title of his talk was "Self-Reflecting Machines" and talking about in...

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Steve: I am fascinated with—[this is] something I asked Alan Alda about also—you have the text written for you extemporaneously by the people that you talk to. But still, when you're working,...

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Steve: Maybe an audience that you wouldn't expect to feel that way about a particular character or person. Smith: Right, that's right. Audience is who come to the theatre in New Yor...

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Steve: Icy volcanoes? What are they spewing? Castelvecchi: They are spewing liquid water out of a world of ice. So imagine you have an icy surface, like you have in Antarctica or Greenland,...

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Steve: Let's start with a brief primer on the whole issue of flu and how human beings, pigs and birds are all related in the whole flu business. Branswell: Well, [as] people will kno...

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DiChristina: We have an expert writing, Thomas Kirkwood, and he talks about why women tend to live longer than men. Steve: You know my father ever since I was a little kid one of h...

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DiChristina: The fact of that the matter is scientific studies have shown that music actually helps students learn in a couple of key ways. One is, first of all a lot of audience probably heard a...

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Firestein: So you want to make any final comments, would you take time; we could take maybe a couple of questions if there's time. Which would you prefer? Do you want to see what's on their m...