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[听力文摘] 听力文摘第21期:缓慢的生存
Survival Of The Sluggish缓慢的生存Silkworms have been bred over thousands of years to behave quite unlike their caterpillar cousins in the wild. That's because people purposely breed silkworm2012-06-26 编辑:rainbow
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[听力文摘] 听力文摘第22期:蚕丝生产的秘密
Secrets Of Silk Production蚕丝生产的秘密Fifteen hundred years ago in China, silk production was a state secret.在1500年前的中国,蚕丝的生产方法是国家机密。The silk trade was so valuable that anyone w2012-06-28 编辑:rainbow
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[听力文摘] 听力文摘第23期:曾经的山顶洞人
Sometime Cavemen曾经的山顶洞人From the bestselling novel2012-06-29 编辑:rainbow
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[听力文摘] 听力文摘第24期:为何冰箱会发出声音?
Why refrigerators hum?为何冰箱会发出声音?Why refrigerators hum,on toay's moment of science.On the recent program we have discussed how fluorocarboncoolant cools your food by coming to a boi2012-07-02 编辑:rainbow
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[听力文摘] 听力文摘第25期:有一种沸腾能冷却你的食物
The Rolling Boil That Cools Your Food有一种沸腾能冷却你的食物!When you think of something boiling, you probably picture a pot on the stove, but there's another kitchen appliance that brings2012-07-03 编辑:rainbow
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[听力文摘] 听力文摘第26期:水下的朦胧世界
The Blurry World Underwater水下的朦胧世界When you open your eyes underwater, things look blurry, but with goggles, everything looks perfectly clear. Why can't we landlubbers focus underwater2012-07-04 编辑:rainbow
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[听力文摘] 听力文摘第28期:夜视为何看不见颜色
Night Vision And Humans: Why Can't We See Color?夜视:人类为何看不见颜色? When we are in a fairly dark room, or outside at night away from lights, we can still see, but we can'2012-07-06 编辑:rainbow
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[] 听力文摘第27期:为什么天空不是统一的蓝色
1970-01-01 编辑:
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[听力文摘] 听力文摘第27期:为什么天空不是统一的蓝色
Why The Sky Is Not Blue为什么天空不是统一的蓝色Look at various parts of the sky on a clear day and you will see that it is not a uniform blue. Even if the sky is deep blue when you look straight up,2012-07-05 编辑:rainbow
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[听力文摘] 听力文摘第29期:为何高尔夫球上有小窝?
Why Do Golf Balls Have Dimples?为何高尔夫球上有小窝?You're out on the golf course one pleasant afternoon. Your ball is set on the tee. You lean over the ball. You grip the club just right.在2012-07-09 编辑:rainbow
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[听力文摘] 听力文摘第30期:迷幻蘑菇会让人性格更好吗?
Do Magic Mushrooms Make People Nicer?迷幻蘑菇会让人性格更好吗?I’ve heard that psilocybin, which is the hallucinogenic ingredient in psychedelic mushrooms, can alter people's personalities a2012-07-10 编辑:rainbow
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[听力文摘] 听力文摘第31期:我的大脑是静止的还是不断变化的?
Is My Brain Static Or Constantly Changing?我的大脑是静止的还是不断变化的?Scientists used to think that for all its complexity, the brain was pretty static. Once the brain matured, it essentially sto2012-07-11 编辑:rainbow
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[听力文摘] 听力文摘第32期:荧光猫,猴子和艾滋
Glow In The Dark Cats, Monkeys, And HIV荧光猫、猴子和艾滋Have you heard the one about the jellyfish, the monkey, and the glow in the dark cat?你听说过关于水母、猴子和在荧光猫的事情吗?Actually, it&am2012-07-12 编辑:rainbow
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[听力文摘] 听力文摘第33期:闪电有助于肥沃土壤
Lightning Helps Fertilize The Soil闪电有助于肥沃土壤Our bodies need protein, and proteins contain nitrogen. The air we breathe has plenty of nitrogen to satisfy our needs.人体需要蛋白质,蛋白质中含有2012-07-13 编辑:rainbow
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[听力文摘] 听力文摘第34期:你能定位空中的飞机吗?
Why Is It So Difficult To Spot A Plane In The Air?为什么定位空中的飞机如此难?How many times have you heard a jet plane going over, looked up to see it, but not been able to find it even though you w2012-07-16 编辑:rainbow
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[听力文摘] 听力文摘第35期:噪声污染正在影响着鲸鱼
Noise Pollution Is Affecting Whales噪声污染正在影响着鲸鱼If a noisy neighbor is blasting music at all hours of the day and night, drowning out your phone conversations and interrupting your sleep, yo2012-07-17 编辑:rainbow
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[听力文摘] 听力文摘第36期:锚应该抛多远?
Anchors Away, Me Boys—but How Far?锚应该抛多远?Anchors away, me boys—but how far? On this moment of science.What happens if you throw your anchor overboard and there isn't enough chain to2012-07-18 编辑:rainbow
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[听力文摘] 听力文摘第37期:火山与水
Volcanos and Water火山与水Firefighters use water to battle a towering inferno.You might wonder if water could also stifle an erupting volcano. Actually, this experiment happens every time a volcano e2012-07-20 编辑:rainbow
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[听力文摘] 听力文摘第38期:种族刻板印象
Racial Stereotypes and Memory种族刻板印象Although there has been much debate about whether race has a biological or social basis, the bottom line is that race is a psychological reality for many peop2012-07-25 编辑:rainbow
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[听力文摘] 听力文摘第39期:地球同步卫星(1)
A Stationary Satellite, part 1地球同步卫星(一) Some of the best devices in science have been anticipated by science fiction writers years before they existed.一些最先进的科学设备在被发明前就在科幻小说2012-07-26 编辑:rainbow