含中文字幕节目   

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Think of how many letters fit on a single page. And now imagine a stack of pages 300 feet tall. That's how much information is stored in the DNA inside every human cell-- the entire human...

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The great wave. A look at how Japan views the sea and itself. AT AROUND the age of 70, Katsushika Hokusai, still bounding with artistic energy, created “Thirty-six Views of Mount Fuji”, a series of ...

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When Charley hastily died,he left a wife and nine children.They lived on a small piece of land and a house with 4 rooms.Since John was the oldest boy.His mother told him he would have to take care of ...

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Musser: Well the real impetus is that we've just come up to the fiftieth anniversary of the dawn of the space age, on October 5th?some people think it is October 4th, but actually it's October 5th, 19...

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No-one would have believed in the last years of the nineteenth century that this world was being watched keenly and closely by intelligences greater than man. You may know H. G. Wells for his icon...

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We tell of the memorial service. We remember the life of the princess. We tell of the aid organizations that she supported. Is progress still being made? Is her life’s work continuing? On the thirt...

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Mothers of twins do not just get twice the bundle of joy—they are also healthier than other mothers THROUGHOUT history, twins have provoked mixed feelings. Sometimes they were seen as a curse—an un...

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Steve: I'm sitting in Central Park with Nat Bletter. Nat is an ethnobotanist. Why don't you start off by explaining what ethnobotany is and what you do? Bletter: Okay. Thanks for having me on Steve. ...