60秒科学:Smaller Fingers Mean More Sensitive Fingertips

Smaller Fingers Mean More Sensitive Fingertips A study in the Journal of Neuroscience finds that people with smaller fingers have more sensitive fingertips, probably due to a higher concentration of touch receptors in a given area. Cynthia Graber rep

60秒科学:Mercury Fillings Seem Safer over Time

Mercury Fillings Seem Safer over Time A study in the journal Chemical Research in Toxicology finds that mercury on the surface of dental fillings slowly turns to an inert sulfide compound, which should keep the mercury from harming the nervous system

60秒科学:If Time Flew, You Had Fun

If Time Flew, You Had Fun A study in the journal Psychological Science finds that if people believe that time has flown, they think they had more fun. Karen Hopkin reports As we all know, time flies when youre having fun. But according to a study in

60秒科学:1 Million Years B.C.: Humans Rare

1 Million Years B.C.: Humans Rare A study in the Proceedings of the National Academy of Sciences used genomic analysis of modern humans to reveal that the population of our ancestors a million years back was below 20,000. Karen Hopkin reports At one

60秒科学:杀蚊虫新方法

科学家发现杀害疾病传播型蚊子的新方法：干扰其泌尿过程。 Message to Mosquitoes: Urine Trouble You know how uncomfortable it feels when you really have to go to the bathroom? And you have to hold it in? If researchers get thei

60秒科学:《最后的晚餐》各画作中食物份量不断

近日，美国两位学者对1000年至2000年间绘制的52幅以最后的晚餐为主题的著名画作进行分析比较后发现，在这一时期内，画中摆放在耶稣和他的信徒面前的食物份量不断增加。 研究人员采用电脑

60秒科学:核武器与葡萄酒的关系

数千年来，大气中碳12和碳14的比例是稳定不变的，然而，二十多年以来的原子弹试验，使得碳14的水平增加。生长中的葡萄吸收了空气中的二氧化碳，而通过测试葡萄中的碳含量，就可以大致

60秒科学:冬暖夏凉的屋顶

Lowering the Ceiling on Roof Energy Losses Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because traditional black asphalt roofs heat up in summer and s

60秒科学:黑烘焙咖啡 可以让胃部更舒服

Stomach Cells Happier with Dark Roast Coffee Ever get a sour stomach after your morning coffee? Well, you might end up switching to a dark roastbecause that coffee concoction may leave you with a happier tummy. That's according to research presented

60秒科学:大社区的人对陌生人更友好

科学研究发现，对陌生人友好是形成大社区的必要条件。 Fairness with Strangers May Be the Invention of Large SocietiesWere nice to our families. From an evolutionary perspective, that makes sense. But what makes us deal fairly wi

60秒科学:青春期, 孩子会变笨？

在《科学》杂志上的一篇研究中，研究者们描述了青春期时人体内细胞和分子的改变，正是这种改变促使这段时期的人们智力水平低下。 Ah, puberty. A time for raging hormones, growing independence and bei

60秒科学:驯鹿的昼夜节律钟

人类按照24小时一循环的作息规律来生活，是因为大脑中有昼夜节律钟的协调。 研究发现，驯鹿等北极动物，在北极持续数周白天或黑夜里生活时，是没有昼夜节律钟的。 How Its Internal Clock I

60秒科学:你身上的细菌"身份证"

相信吗？你身上寄生的细菌群有辨识身份的功能。 They say that who you hang out with says a lot about who you are. Well, the microbes that hang out on your fingers can point to exactly who you are. Because scientists [Noah Fierera e

60秒科学:德克萨斯州篡改历史

The Texas Board of Education has long promoted the teaching of creationism in schools instead of actual science. Its former chairman and current member Don McLeroy uttered this immortal line when confronted with numerous actual scientists urging that

60秒科学:肥胖可以起到保护作用

众所周知，肥胖有害健康。人们常说，肥胖会引发各种各样的内科疾病：胆固醇过高，胰岛素抵抗，还很可能患糖尿病和心脏病。不过，德州大学西南医疗中心的科学家们提出了不同意见。他

60秒科学:"包办婚姻"也可能有真爱

Think arranged marriages are loveless? Not so, says psychologist Robert Epstein, a contributing editor for Scientific American MIND magazine. He spoke March 10 at the 92nd Street Ys Tribeca site in New York City: And theres even a study published in

60秒科学:蚊子是西尼尔病毒的传播者

Mosquitoes, Not Birds, Made West Nile National In 1999 West Nile virus infected its first American, in New York. By 2004, the disease had spread across the country. Researchers speculated that, for the disease to spread so far so quickly, birds must

60秒科学:鲸鱼祖先统治海洋多久？

《科学杂志》上的一项研究表明，硬骨滤食性鱼类用了10亿年的进化时间，占据了须鲸类现在的生态龛。另一项研究表明，鲸类的多样化取决于其食用的微生物类型。 Sometimes scientific discoverie

60秒科学:购物者,你可能低估了账单

So, theyre scanning your items at the grocery store, and when the last tomato gets bagged youre stunned at the cost. How did you spend so much? Maybe those cherries were 12 bucks a pound. Or maybe you should have paid more attention to what you put i

60秒科学:Brain Has "Moving" Parts

For every action, theres a reaction. And for many movements we make, theres an intention: we think about moving, and we move. Now a study published in the May 8th issue of the journal Science suggests that the experience of moving is all in your min