科学研究   

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The millions of bases, which make up the human genome, are organized into structures called chromosomes. These are arranged into 22 matching pairs, plus one pair of sex chromosomes, con...

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Steve: Hi Professor Bell. How are you doing today? Bell: I am fine Steve. It's great to be here. Steve: Good to talk to you. So first of all, you are the leader of the Pancam Team on the planet Mars...

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In the early 1930s there was a territorial dispute between Denmark and Norway over who should have the right to East Greenland. Both Denmark and Norway, they made a lot of aerial mapping. They t...

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First I asked Hood about that football analogy. Hood: You know, I'll give you a much better analogy, if that's okay. I mean, one that anybody can understand is, suppose you were an engineer and you w...

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As represented by this huge stack of paper, the human genome contains more than 3 billion nucleotides or DNA letters. The first stage of the public human genome project focused on ident...

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What is the true nature of the universe? To answer this question, humans come up with stories to describe the world. We test our stories and learn what to keep and what to throw away. But the more...

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Just as explorers have always sought to map new worlds, neuroscientists have sought to map the brain, trying to chronicle its connections and deduce how it works. But making a brain map is easier...

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Wansink: One thing we find is that if you ask a typical person how many food related decisions a day they end up making, most people say 30 or so. In reality we find that a typical person makes betwee...