英语听力文摘 English Digest 666 科学制作出完美松饼

Use Science To Make The Perfect Muffin Blueberry, corn, lemon poppy seed! Muffins come in several scrumptious varieties and are simple to make, but there are pitfalls to avoid. What makes the difference between a lofty, delicate muffin and a flat, ru

英语听力文摘 English Digest 645 可爱的威力

The Power Of Cute Its time to go again to the A Moment of Science mailbag. A listener writes: Dear A Moment of Science, Ive heard that owning a dog or cat can be a good way to deal with stress and ward off depression. So I was wonderingis it interact

英语听力文摘 English Digest 646 雪橇狗是什么品种？

What Kind Of Dogs Are Sled Dogs? In books and movies like Call of the Wild, huge, vicious huskies pull sleds for hundreds of miles over the Alaskan tundra. A Moment of Science wonders, what kind of dogs are sled dogs? Husky Most champion sled dogs ar

英语听力文摘 English Digest 636 地心引力为何对我们有好处

Why Is Gravity Good For Us? When astronauts return from long missions in space, their exit from the spacecraft is usually hidden from public view. This is because after several months in weightless conditions, things we usually take for granted, such

英语听力文摘 English Digest 639 牙医为何令人害怕

Why Do I Fear The Dentist? Dear A Moment of Science, I hate going to the dentist. In fact, I openly fear it. Yet Ive never actually had a really bad or painful experience with a dentist. So why do I fear it so much? Youre certainly not alone. Quaking

英语听力文摘 English Digest 640 致命的花生

Death By Peanut Peanuts are one of the worlds most nutritious foods. Peanuts contain pound for pound more protein, vitamins, and minerals than beef liver and more fat than heavy cream. For approximately .5% of Americans, however, peanuts are not so b

英语听力文摘 English Digest 641 什么引起你嗓子哽咽？

What Causes A Lump In Your Throat? Oftentimes when we cry, we feel a lump in the throat. Does a lump actually form, or is there some other explanation? 图片1 Explanation The lump-like thing we feel when overcome by emotion has to do with how the ne

英语听力文摘 English Digest 649 从科学角度来说什么是厌倦？

What Is Boredom, Scientifically Speaking? Its time to go again to the A Moment of Science mailbag. A listener writes: Dear A Moment of Science, Everyone gets bored from time to time. But I was wonderingwhat is boredom exactly, scientifically speaking

英语听力文摘 English Digest 658 为何要确立格林威治标准时间？

Why Was Greenwich Standard Time Created? Imagine getting on a train at twelve noon and heading out on a four-hour trip to another town. Youd expect to arrive at four oclock in the afternoon, right? But before the last few decades of the 19th century,

英语听力文摘 English Digest 626、我们只用了大脑的10%吗？

Do We Only Use 10% Of Our Brains? Have you ever heard that we humans use only ten percent of our brains? This oft-quoted myth holds a certain appeal because if it were true, then we could instantly become ten times more intelligent just by firing up

英语听力文摘 English Digest 628、太空中进餐！

Why Do Zebras Have Stripes? For many animals, camouflage is an important part of survival. A leopards spotted coat and a polar bears white fur help them blend into their respective environments. But a zebras bold stripes cant help to disguise it in i

英语听力文摘 English Digest 115、毕业班倦怠症大流行

I've recently spoken very directly with a few of my students about a malady that afflicts a certain small percentage of students in that final run of days that lead to the big one: GRADUATION DAY. That malady is not the dreaded H1N1 virus, nor bronch

英语听力文摘 English Digest 134、苏门答腊犀牛

This is the first time that researchers have captured an image of a female Sumatran rhino believed to be pregnant. There are so few of these animals left in the wild - possibly no more than 30 on Borneo - that experts say each new calf is a lifeline

英语听力文摘 English Digest 122、秋季种花的安排

One of the signs of autumn is the heavy morning dew that makes gardens glisten. This is the season to savor the flowers that are still blooming and to harvest the flowers that dry well for winter arrangements. If you have annuals such as blue salvia,

英语听力文摘 English Digest 123、美国薄荷

English born, John Bartram spent more than thirty years exploring Northeast America in search of new plants. He discovered Asters and Goldenrod and many others, despite numerous inconveniences such as rattlesnakes. Monarda, known also as Bee Balm was

英语听力文摘 English Digest 125、环球旅行的热带水果

Plants were world travelers, long before tourists like you and me, were able to fly off to vacation around the world. When Columbus sailed west, he was seeking precious spices of the Indies. He missed his original destination, but because he and othe

英语听力文摘 English Digest 126、传统假日

A decorated evergreen tree is a German tradition that evolved from the pagan festivals of ancient Rome. German immigrants brought the custom to America. There is a charming story about the first Christmas tree in Williamsburg, Virginia, a town noted

英语听力文摘 English Digest 127、艾米丽迪金森

Emily Dickinson was born in 1830 and lived all of her 56 years in Amherst, Massachusetts where, during her lifetime, she was celebrated more as a gardener than a poet. Gardening in mid-Victorian times was thought to be a more appropriate activity for

英语听力文摘 English Digest 672 为什么明明是热却感到冷

Ow! Why Hot Feels Cold Kids dont try this at home! Have you ever dipped your toe into a very hot bath and felt a flash of icy cold just before you realize that its really burning? After you pull your toe out, you might wonder what causes very hot wat

英语听力文摘 English Digest 670 脸谱会导致孤独吗？

Does Facebook Lead To Loneliness? Dear A Moment of Science, Im not a big Facebook user, but I have friends who are. And Ive noticed that some of them are constantly updating their status. Where some people might post a message once a day, others seem