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I was trying to weigh the pros and cons of doing little extra field work or going back to Katmandu, and I finally decided that I could get a little extra field work in with my student if I figured out...

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But you also know that viruses are sub-microscopic. They're exceedingly small. Let me give you some sense of the scale that we're talking about here in more human terms. Let's imagine that I am...

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We talk to Harry Styles of the boy band One Directionand play some of the group's music.We also take a look at some of your comments.But first,we visit a building project in Washington, DC, where volu...

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Books and Arts; Book Review; Queen Elizabeth II; Royal bow;Why the queen has to be seen to be believed? The Real Elizabeth: An Intimate Portrait of Queen Elizabeth II. By Andrew Marr. Queen Elizabe...

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Dr. Bagian, thanks for talking to us today. Bagian: Oh, glad to be here. Steve: You already had an M.D. when you became an astronaut. Bagian: Really, NASA, when they look for astronauts, they look ...

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(It’s Got To Be) Perfect It has got to be perfect. It has got to be worth it Too many people take second best Well, I will not take anything less It has got to be perfect. ‘Perfect’ - a song f...

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Science and Technology 【Clean water 】 Silver threads of life 【A water filter that kills bacteria, rather than just removing them 】 MORE than a billion people lack clean water-and in most cases t...

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I'm here at Ben and Jerry's. And who are you? Derek: My name is Derek Spors. I am an ice cream scientician. Steve: And, what does that mean? What's your background? Derek: My background is food sci...