科学美国人60秒 SSS Building a Better Mirror for Telescopes

Building a Better Mirror for Telescopes 为望远镜打造更优质镜面 To study the heavens, it's all about the photons. We in astronomy are always greedy. We want every photon we can collect. Drew Phillips, astronomer at University of California

SSS 2011-12-22

This is Scientific American's sixty Science. I'm Sophie Bushwick. Got a minute. Several for the species can distinguish between two and five bananas, but what's the exceptional the primates they can't grasp the new American rules, what let they range

科学美国人60秒 SSS 好人的钱包更空

Nice People Have Emptier Wallets Are you an agreeable personyou know, a nice guy? If so, a logical follow-up might be: how are your finances? And here's why: Agreeable peoplehave lower savings, they have higher debt, and they're also more likely to g

科学美国人60秒 SSS 长颈鹿妈妈的基因使得小长颈鹿很难被发现

Mom's Genes Make Some Giraffes Hard to Spot Just like humans have virtually unique sets of fingerprints, every giraffehas a unique set of spots. Not that those spot patterns really help wildlife biologists identify their study subjects in real time.

科学美国人60秒 SSS 从天空扫描古代文明

Scanning Ancient Civilizations from the Skies If there's a fifth Indiana Jones movie, Indy might want to use one of the hottest new tools revolutionizing archaeology: LiDAR, or Light Detection and Ranging, which allows archaeologists to survey ancien

科学美国人60秒 SSS Jupiter Moon to Be Searched for Life

Jupiter Moon to Be Searched for Life去欧罗巴寻找生命 And this mission would be NASAs first mission that is directly tasked with searching for signs of life on another world since the Viking Spacecraft were given that task back in the 1970s on

科学美国人60秒 SSS 抱住大星系的大腿

Our galactic home, the Milky Way, is big. Mostgalaxies are far smaller. And its not easy being one of those little galaxiesa big galaxys gravity can rob their gas. And gas creates new stars, so losing gas spells the end of star-making. That's what ha

科学美国人60秒 SSS 大爱发酵食品

There are sort of three main ways that our species has developed to break down foods, or process foods, in a primordial way. And that is by cooking,by fermenting foods and by drying them or desiccating them. 我们人类有三种分解食物或处理食

科学美国人60秒 SSS Super Bowl Snacks Need These Exercise Equivalents

Super Bowl Sunday is almost here and theres one question on everyones mind: How can I tackle a plate of chicken wings without adding yardage to my end zone? Well, Charles Platkin is the director of the New York City Food Policy Center at Hunter Colle

科学美国人60秒 SSS Gulf Dead Zone Makes for Shrimpier Shrimp

Every spring, the Mississippi River dumps tens of thousands of tons of nutrient runoff into the Gulf of Mexico. Add temperature, current and wind to that pollution, and you have the Western Hemisphere's largest stretch of oxygen-poor watersa so-calle

科学美国人60秒 SSS 红细胞可“记住”并适应高海拔

Head to the mountains, and if the steep trails don't slow you down, the thin air will. There's less oxygen up thereso strenuous activity can leave you dizzy, out of breathor worse. But even though you're beat, biochemical processes are already busy a

科学美国人60秒 SSS Partnered-Up Men More Attractive to Women

It turns out the best looking thing on a man may be a good-looking woman. Researchers report that women find a man they see with an attractive woman more desirable than unattached men. Thats according to a study in the journal Evolutionary Psychology

科学美国人60秒 SSS Hand Soap Ingredient Can Up Body Bacteria Burden

The antimicrobial triclosan is a common ingredient in hand soap. But it's also found in shampoos, deodorants, toothpaste, even lip gloss. So it's not too surprising that triclosan also shows up in blood, urine, breast milk and mucus. But here's the w

科学美国人60秒 SSS Many More Americans Issue End-of-Life Instructions

Most people dont like to think about death, much less plan for it. Many Americans have thus failed to officially record their wishes should they be faced with catastrophic circumstances that, for example, would require them to be placed on a ventilat

科学美国人60秒 SSS Silk Road Transported Goods--and Disease

For thousands of years, whats called the Silk Road was a group of land and sea trade routes that connected the Far East with South Asia, Africa, the Middle East and southern Europe. Of course, when humans travel they carry their pathogens with them.

科学美国人60秒 SSS Cut Road Deaths with Mountain Lions

Are you afraid of sharks? What about snakes or spiders? Put those fears aside: because in the U.S. youre far more likely to be killed or injured by a deer bounding across the road. Bambi and his kind cause more 200 humans deaths each year, plus some

Dodgers Doc: No Non-Injury Tommy John Surgery To Improve Performance 道奇队 Doc︰ 没有非损伤汤米约翰手术以提高性能

There was a recent study that did a survey of parents and coaches asking them what they thought about Tommy John surgery. 有了最近的一项研究做了一个调查的父母和教练询问了他们的想法汤米约翰手术。 Dr. Stan Conte, vic

Goo Keeps Bones Strong but Supple 黏性物质使骨骼强，但柔顺

New news is goo newswhen its inside our bones, anyway. Because a combination of imaging techniques and modeling has revealed that our bones are filled with a natural chemical goo thats key to the bones function as support structures. The finding is i

科学美国人60秒 SSS Flu Vaccine Keeps Connecticut Kids From Hospitals 流感疫苗保持康涅狄格州孩子从医院

Flu vaccination is proving itself among Connecticuts tots. 接种流感疫苗证明自己在康涅狄格州的小孩。 In 2010 a state law went into effect that requires toddlers aged 6 months to 59 months to get flu shots if they attend child care.

科学美国人60秒 SSS Bedroom TV Linked To Kid Weight Gain 卧室电视相连的孩子体重增加

Parents, its time to get the TV out of your kids bedroom. 父母，是时候要离开你的孩子的卧室电视。 About 60 percent of all teenagers bedrooms in the U.S. include a TV set. Now research suggests that the mere presence of that TV in th