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[科学美国人技术系列] 60秒科学:嗓音低沉更易赢得选票
As voters vacillate among the contenders for the Republican nomination, it may matter less what the candidates say than how they sound when they say it. Because a new study shows that voters are more2012-03-16 编辑:beck
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[科学美国人技术系列] 60秒科学:黑猩猩警察
It sounds like the premise for a bad police drama, maybe NYPD Chimp. But scientists have found that high-ranking chimpanzees can act like cops: intervening to settle public disputes. The study appear2012-03-19 编辑:beck
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[科学美国人技术系列] 60秒科学:里程价和油价不一样
The average price for a gallon of gas in the U.S. today was nearly $3.78 per gallon. But why do we calculate fuel expenditure in dollars per gallon? Wouldn’t a more realistic figure be cost per2012-03-20 编辑:beck
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[科学美国人技术系列] 60秒科学:寻找生命行星
How can we search for life on exoplanets? Step one: examine the Earth as if it were an exoplanet. That’s the idea behind a recent look at earthshine.[qh]我们怎样寻找(太阳)系外行星上的生命?步2012-03-23 编辑:beck
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[科学美国人技术系列] 60秒科学:小心,你会被视为持枪者
A quarter of all police shootings involve unarmed suspects. In a few recent cases, officers mistook cell phones and hairbrushes for guns, and shot and killed the victims. Now a study may explain—in2012-03-27 编辑:beck
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[科学美国人技术系列] 60秒科学:电子书围剿纸质书
Kindles, Nooks and other e-readers catch flack for threatening the future of printed books. But reading itself may get a boost from the devices. For example, a study of struggling students found that2012-03-31 编辑:beck
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[科学美国人技术系列] 60秒科学:越喜欢锻炼的老板对员工越好
We've all heard exercise is good for your physical and mental well-being. But a good workout can actually influence the mental well-being of others, too. Because bosses who hit the gym tend to be2012-03-29 编辑:beck
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[科学美国人技术系列] 60秒科学:音乐和言论中的情感
When you hear Western music, you generally get the emotional tone. A major key is happy. A minor one? That’s sad.[qh]当你听到西方音乐时,通常你可以感受到它们的情感色彩。大调表示快乐。小调呢?是2012-03-22 编辑:beck
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[科学美国人技术系列] 60秒科学:音乐有助于数学学习
Stuck on a tricky math problem? Start clapping. Grade school kids who learned about fractions through a rhythm-and-music-based curriculum outperformed their peers in traditional math classes. The wor2012-03-28 编辑:beck
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[科学美国人技术系列] 60秒科学:"苹果"里的青蛙
Scientists discover new species all the time—on the order of 15,000 a year. One of the latest additions to the tree of life is a new type of leopard frog. Which might sound unremarkable, except for2012-04-01 编辑:beck
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[科学美国人技术系列] 60秒科学:YouTube大赛优胜者的太空创意
The first YouTube Space Lab contest has announced its winners. Young people entered by creating a short video of their idea for an experiment to be done in space. I was a judge. One of the two winner2012-04-05 编辑:beck
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[科学美国人技术系列] 60秒科学:大斋节结束,鬣狗有了免费午餐
Many Christians give up meat for Lent, a practice that indirectly affects…hyenas, believe it or not.许多基督徒在大斋节期间会放弃食用肉类。不论你信与不信,这对鬣狗产生了间接的影响。In northern Ethiop2012-04-09 编辑:beck
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[科学美国人技术系列] 60秒科学:麻雀叫声穿透城市噪音
City dwellers compete with the din of traffic to be heard. And it’s not just urban humans. Sparrows living in San Francisco's Presidio district actually tweet their tunes in a higher registe2012-04-10 编辑:beck
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[欧美MV] 生物科学:人类学工作
2007-01-24 编辑:admin
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[科学美国人技术系列] 60秒科学:智能手机的隐藏成本
Free smart phone apps might seem like a deal. But they can have a hidden cost: your phone's battery life. That's because free apps often serve up ads, which can drain your battery mor2012-04-12 编辑:beck
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[科学美国人技术系列] 60秒科学:全球变暖不利植物生长
Global warming might seem like a botanical boon. After all, milder temperatures and more carbon dioxide and nitrogen should feed flora. But a ten-year study has found that any initial positive effect2012-04-13 编辑:beck
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[科学美国人技术系列] 60秒科学:冰敷对付蚊虫叮咬最有效
Spring is in the air. And so are those dang insects, hungry for a blood meal. The victim can wind up with a bunch of bites, red and itchy. So what drugs can quench that itch? Maybe none, according to2012-04-17 编辑:beck
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[科学美国人技术系列] 60秒科学:不幸日里就是不幸
If you have paraskevidekatriaphobia, today is not your day. That’s right, paraskevidekatriaphobia is fear of Friday the 13th and the accidents, mishaps and misfortunes thought by some to occur on th2012-04-16 编辑:beck
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[科学美国人技术系列] 60秒科学:为何白纸随着时间推移会发黄
As it ages, white paper turns a distinctive yellow. But why? To find out, scientists artificially aged modern paper to reveal the changes on the molecular level. The research is in the journal Physic2012-04-18 编辑:beck
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[科学美国人技术系列] 60秒科学:发展鲨鱼生态旅游比做鱼翅汤更赚钱
Tens of millions of sharks are killed for their fins each year. It's not just a tragic abuse of the animals. It's bad business.人类对鱼翅的贪欲导致每年有数以千万计的鲨鱼遭到杀戮。这不2012-04-19 编辑:beck