Heres an easy way to find out if someone is a narcissist. Just ask them. Thats according to a study in the journal PLoS One. Researchers posed the following question to more than two thousand people: To what extent do you agree with this statement: I

发表于:2019-01-20 / 阅读(46) / 评论(0) 分类 2014年Scientific American(九)月

When you hear the word mutation, you may think of something destructive, or of Marvels X-Men. But some mutationswhich are just differences in DNAcan be historic. Take, for example, a genetic sequence found in the vast majority of people from Tibet. M

发表于:2019-01-20 / 阅读(35) / 评论(0) 分类 2014年Scientific American(九)月

Everybody loves chimpsespecially their endearing entreaties. Scientists, too, love to listen to chimps chat. And they enjoy sharing these colorful commentaries with their colleagues. Now, anyone with a hankering for primate prattle can listen in. Bec

发表于:2019-01-20 / 阅读(35) / 评论(0) 分类 2014年Scientific American(九)月

You have probably noticed that the synthetic shirts stinks more after a workout, compared to cotton. But hey, it's not the fabric's fault, it's the microscobes that hang out on synthetics that create the characteristic stach. That's according to a st

发表于:2019-01-20 / 阅读(32) / 评论(0) 分类 2014年Scientific American(九)月

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发表于:2019-01-20 / 阅读(26) / 评论(0) 分类 2014年Scientific American(九)月

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发表于:2019-01-20 / 阅读(31) / 评论(0) 分类 2014年Scientific American(九)月

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发表于:2019-01-20 / 阅读(36) / 评论(0) 分类 2014年Scientific American(九)月

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发表于:2019-01-20 / 阅读(32) / 评论(0) 分类 2014年Scientific American(九)月

This is Scientific American Sixty Second Science. I'm Christopher Intagliata. Got a minute? You've probably noticed that synthetic t-shirts stink more after a work-out, compared to cotton. But hey, it's not the fabric's fault, it's the microbes that

发表于:2019-01-20 / 阅读(35) / 评论(0) 分类 2014年Scientific American(九)月

Sepsis is a potentially deadly inflammatory condition caused by infections. Muppet creator Jim Henson was a famous victim. Proper treatment of sepsis can require knowing what bacteria or virus caused the infection. But the identification can take day

发表于:2019-01-20 / 阅读(28) / 评论(0) 分类 2014年Scientific American(九)月

The business world is sometimes described figuratively as doggy dog. In the state of Maharastra, in western India, the situation is literally cat eat dog. Where the cats are leopards and dogs are, well, dogs. That's the findings of a wildlife conserv

发表于:2019-01-20 / 阅读(43) / 评论(0) 分类 2014年Scientific American(九)月

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发表于:2019-01-20 / 阅读(39) / 评论(0) 分类 2014年Scientific American(九)月

HC found out and announced today, commonly called the Genius Grands. 7 of the 21 follows are math ? of scientists. And the other, is a science's story. My name is PL, and I'm a historian of 15-16 century Europe of the historic science and technology

发表于:2019-01-20 / 阅读(38) / 评论(0) 分类 2014年Scientific American(九)月

Biologists used to think turtles belong to the silent majority of reptiles, meaning if turtles made sounds, no one is listening. One reptile guy from the 1950s went so far as to call them quote deaf as a post. But it turns out scientists just weren't

发表于:2019-01-20 / 阅读(39) / 评论(0) 分类 2014年Scientific American(九)月

66 million years ago, the check shoot the media right, a rock over 60 miles wild, snapped in to the earth. And you know what happened next, the dinos disappeared. But BB says to consider the big picture for a moment.You have to think not only about t

发表于:2018-12-24 / 阅读(30) / 评论(0) 分类 2014年Scientific American(九)月

Sixty-six million years ago, the meteorite, a rock over six miles wide, slammed into the earth and you know what happened next, the dinos disappeared. but Benjemin Blunder, a planty ecologist at the University of Arizona, says , consider the picture

发表于:2018-12-24 / 阅读(30) / 评论(0) 分类 2014年Scientific American(九)月

That is prescal child beating a drum in sequence an adult drummer. Here is the prescaler who cannot find the rhythm. Researchers find that the first child who can match the drum beats is more likely to have better early language skills and reading po

发表于:2018-12-24 / 阅读(40) / 评论(0) 分类 2014年Scientific American(九)月

Some scientists say that the use of fire helps to make us the modern humans it dramatically changed what and how we eat or may have even altered our enemy. But the University of Utah anthropologist Polly Wisner thinks that the fire is also important

发表于:2018-12-24 / 阅读(36) / 评论(0) 分类 2014年Scientific American(九)月

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发表于:2018-12-24 / 阅读(39) / 评论(0) 分类 2014年Scientific American(九)月

East, they all ready participate in producing some of the most popular pain killer substances around, bear and wine. Now scientists analyze the east can also make some of the most powerful energizes. morphine.They work in the general natural chemical

发表于:2018-12-24 / 阅读(43) / 评论(0) 分类 2014年Scientific American(九)月