SSS 2011-06-22

This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Saliva contains many useful components: lubricants, enzymes for breaking down food and now compounds that can reveal a persons age. Thats according to a

学个词Learn a Word 第1561-restriction

今天我们要学的词是restriction. Restriction是限制的意思。President Obama vowed to implement new measures to curb violence in American cities, including reasonable restrictions on gun ownership. 美国总统奥巴马誓言，要减少美国

SSS 2008-05-08

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This'll just take a minute. It sounds like something out of a bad science fiction novel. During World War II, a fungus called Tricoderma reesei ate its way through US military unifo

草莓的作用

Dieting isnt always easy, particularly if you have a sweet tooth. But by adding strawberries to your diet, you can enjoy a range of guilt-free dishes, drinks and snacks any time of day. Best of all, strawberries are low in calories, high in fiber, fa

美白牙齿9妙招

美丽实验室：美白牙齿9妙招 Want to know how to get a superstar smile? Who doesn't? Well, here's a list of your very own at home beauty solutions direct from your Beauty Lab tooth fairy to whiten, brighten and cheer up your choppers. We do

TED演讲:我们为什么要排气(2)

But methane is actually odorless, too. 但是甲烷也是无味的。 Well then, what stinks? 那么，什么东西这么臭？ The foul smell is usually due to volatile sulfur compounds, such as hydrogen sulfide and methanethiol, or methyl mercaptan

健康生活:吃生的食物 更有营养

Author Jeremy Safron has a unique philosophy on food: Don't cook it. Safron, a pioneer in the raw-food movement, is out with a new book, The Raw Truth, which outlines the benefits of raw food. He writes that vital enzymes in our food that are elimina

经济学人106:口吃科学 演讲疗法

Science and Technology The science of stuttering Speech therapy 科技 口吃科学 演讲疗法 Unravelling the mystery of faltering speech 解秘演讲时的口吃 DOWN the ages stuttering has been blamed on many things. 多年来，口吃可以归咎

在购物清单上加上这些健康食品吧

Avocado 牛油果 In addition to its flavorful taste and rich and creamy texture, this fruit (yep, it is indeed a fruit!) is loaded with antioxidants and can help you lower your bad cholesterol. Whether you eat it in a salad, spread on toast, or even

加强肝功能的六种食物

A healthy liver plays a key role in relieving digestive issues, such as a sluggish metabolism, gas, bloating, and constipation. It regulates blood sugar levels, which, when out of balance, can cause sugar cravings, fatigue, and fuzzy thinking. 健康的

U.S. FDA approves new drug to treat leukemia

WASHINGTON, Nov. 18 (Xinhua) -- The U.S. Food and Drug Administration (FDA) on Friday approved Erwinaze to treat patients with acute lymphoblastic leukemia (ALL), who have developed an allergy to E. coli derived asparaginase and pegapargase chemother

某些胃药可能增加心肌梗死的风险

Heartburn Drugs Linked to Heart Attacks 某些胃药可能增加心肌梗死的风险 The widely used drugs known as proton pump inhibitors, or P.P.I.'s gastric reflux preventives like Prilosec and Prevacid may increase the risk for heart attack, acc

U.S. imposes strict restriction on cyberspace: report

BEIJING, April 10 (Xinhua) -- While advocating Internet freedom worldwide, the U.S. imposes fairly strict restriction(限制,约束) on cyberspace on its own territory, said the Human Rights Record of the United States in 2010 issued by the Informati

吃货担心过年长膘？试试瘦身香水

As the battle against the post-festive bulge rages on, many of us are seeking out any extra help we can get with New Year's resolutions to lose weight. 抗击节后肥胖的战争已然打响，不少人都在寻求助力以实现成功减重的新年决

健康生活 从食物搭配开始

There has been a lot of research done on the significance of food combining when we eat. Many believe that our stomach is designed to only digest food correctly one food type at a time or eating foods together that are compatible with each other. Thi

经济学人:熊猫遗传学:熊猫的第二拇指(2)

He and his colleagues noted parallel changes in the genes for three digestive enzymes whose job is to liberate two particular amino acids, lysine and arginine, from proteins. 他的团队发现三种消化酶基因相似的改变，这些消化酶的作

人死的时候身体会发生什么变化呢？

在我们的生活中，死亡是我们所有人必定会遇到的事情，无论是家庭成员还是宠物，甚至是你都将有终结之时。事实上，每分钟世界上大约就有100人死亡。但在人死之时到底会发生什么呢？

经济学人449:医用植入设备 一个甜美的想法

Science and technology. 科技。 Medical implants. 医用植入设备。 A sweet idea. 一个甜美的想法。 Researchers are trying to harness glucose-the body's own fuel-to power implantable gadgets such as pacemakers. 研究人员正试图利用葡

囧发明 科学家发明会发光的可爱多

It may be a la mode to create lighter versions of our favourite snacks but one company has taken the trend rather literally. 创意美食，点亮生活。不过，一家公司当真做到了把那些最受人们欢迎的副食点亮了。 The world'

六种必吃的抗癌食物

Broccoli椰菜 All cruciferous veggies (think cauliflower, cabbage, kale) contain cancer-fighting properties, but broccoli is the only one with a sizable amount of sulforaphane, a particularly potent compound that boosts the body's protective enzymes