大千世界: 蠕虫被送往外太空

Worms seem like strange animals to send to the International Space Station. It's not like astronauts are going to take time off to go fishing and need to bait their hooks. So why send worms? Believe it or not, scientists are using a microscopic worm,

AP 2011-11-26

1. Egypt's military ruler says the arm forces are prepared to hold a referendum on an immediate transfer of power to a civilian authority if people demand it. In a televised address, Egyptians were also told that president elections would be held bef

SSS 2010-03-18

Humans are pegged to a 24-hour cycle. We're locked into it not just by day and nighttheres the master timepiece in the brain called the circadian clock. But it doesn't make sense to live by a 24-hour clock in the Arctic, where it's dark or light for

SSS 2009-05-26

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. As we recover from the holiday weekend, there is some intoxicating news on curbing the effects of alcohol. In the May 29th issue of Cell, scientists report

有声英文阅读-生男生女（肚皮露玄机？）

Can Your Belly Tell You If It Is a Boy or Girl? Many myths surround the mysteries of pregnancy. For example, people have developed a lot of folk wisdom about predicting a baby's sex. One old wives' ta

有声英文阅读-江山易改，本性能移

Transsexuality is an interesting, if baffling, subject for most people. It is often confused with transvestitism, even though the two are distinctly different. Transvestites feel a compulsion to dress

SSS 2008-04-14

This is Scientific Americans 60-Second Science, I'm Cynthia Graber. This will just take a minute. In vitro fertilization(试管受精) efforts can be helped by oddly enough oral contraceptives .That's the finding from Tel Aviv University, site of the

SSS 2009-06-02

Leptin is a hormone made by fat cells that tells you when you're full. If you didn't have leptin---and some people don't---youd eat way too much, get real fat and almost certainly develop diabetes. Leptin acts like a natural appetite suppressant. Kid

SSS 2010-02-16

Some call it the hormone of love. Its oxytocin and it helps moms bond with and breast-feed their babies, and even keeps romantic couples content. Now a study suggests that this same hormone might also help people with autismby improving their social

SSS 2011-05-04

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Parents wring their hands over infant sleep patterns. And so when those patterns change, parents tend to panic. But if your baby is sleeping more or na

研究：男性同事多不利职场女性健康

Ladies, take note: a new study has found that working in a male-heavy environment is bad for you. 女士们，请注意：一项新研究发现，在男性多的环境下工作有害女性身体健康。 Researchers from Indiana University Bloomingto

CNN 2008-02-14

Good afternoon. I'm Naamua Delaney at the CNN Center in Atlanta. Here is a look at what's happening NOW IN THE NEWS. We're following the high drama on Capitol Hill, where a baseball superstar is trying to defend his reputation. Seven-time Cy Young A

Estrogen and Ovarian Cancer

34 过多服用雌性激素有可能引发卵巢癌 DATE=4-12-01 TITLE=SCIENCE REPORT -Estrogen and Ovarian Cancer BYLINE=Mario Ritter (Start at 1'00

爱情的科学－你或许也会面对它……

You might as well face it ... / 你或许也会面对它…… Sex stimulates the release of vasopressin and oxytocin in people, as well as voles, though the role of these hormones in the human brain

双语：男性忠贞法则 父爱让人本分

They say having a family changes a man forever. But it may not just be a sense of duty that drives new dads to swap evenings in the pub for quiet nights at home。 A study has found that when men become fathers, their bodies suppress production of th

TED演讲:4种声音影响我们的方式(1)

Over the next five minutes, 在接下来的5分钟里 my intention is to transform your relationship with sound. 我想把你们与声音的关系作个转变 Let me start with the observation that most of the sound around us is accidental, 首先，请

喝咖啡的最佳时间:上午10点半

For many of us, it is the rocket fuel that gets us going first thing in the morning. 对我们许多人来说，早起第一件事就喝咖啡则如同火箭燃料一般，能让我们清醒起来动起来。 But one expert has argued that to get the

TED演讲：细菌是怎样交流的(5)

But then if you think about it, the squid has this terrible problem 但是如果你再深入地想一下，这乌贼会有一个可怕的问题， because it's got this dying, thick culture of bacteria and it can't sustain that. 因为在它的体内，

TED演讲：肢体语言塑造你自己(6)

So the second question really was, you know, so we know that our minds change our bodies, 第二个问题就是，我们知道心理状态会影响我们的身体， but is it also true that our bodies change our minds? 那身体是否能影响心理呢

睡眠不足-容易感冒(4)

You're Ravenous 变得贪吃 If you find yourself hungry all day （and not because you skipped breakfast or have recently amped up your gym routine）it might be because you've been skimping on sleep. Research presented at the 2010 meeting of theSoc