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听力文摘：超市的数字把戏
The Supermarket Numbers Game Have you ever gone to the store just for milk, but walked out with eight sale-priced cans of something youd never tasted and eight candy bars? How does that happen? Dr. Brian Wansink of the University of Illinois Food amp
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听力文摘：惊天内幕,医生不洗手!
The Surprising Truth: Doctors Are Not Washing Their Hands Since the beginning of time, or at least for a good long while, mothers have exhorted their kids to wash their hands. Its a lesson most of us learn and carry with us into adulthood. And youd t
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听力文摘：岩石怎么会出现在你的花园?
How Rocks Appear In Your Garden I wonder how many of us went out this past spring to get our gardens ready for planting, smug in the thought that last year we got rid of all the rocks. Theres that nice big mound of them in the corner of the garden wh
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听力文摘：利刃特别在何处?
Whats So Special About A Sharp Knife? Everyone knows that a sharp knife cuts better than a dull one, but do you know why, exactly? The purpose of the cutting edge of a knife is to concentrate the force thats being applied at the handle. When you push
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听力文摘：暴力电玩会改变我们的大脑吗?
Do Violent Video Games Change Our Brains? Video games are a huge industry kids and young adults spend more time playing them than watching movies or TV. And some of the most popular video games are ultra realistic war and fighting games featuring mas
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听力文摘：你的瞳孔出卖了你!
What Do Pupils Tell Us? The size of our pupils can give clues to our interest, emotions, attitudes, and thought processes. If youve seen a magician tell which card someone picked from a deck, youve probably been amazed. Well, the pupils often open up
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听力文摘：在大脑和内脏之间有联系吗？
Is There A Connection Between The Brain And The Gut? 在大脑和内脏之间有联系吗？ Most people realize there is a brain gut connection. Nervous tension can aggravate irritable bowel syndrome and common dyspepsia, or stomach upset. 大多数人
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听力文摘：什么是氨基丁酸化学物质?
What Is The GABA Chemical? 什么是氨基丁酸化学物质？ What would it be like if wearing a soft cotton t-shirt felt like your skin was being scrubbed with a Brillo pad? For people who suffer from a condition called central pain, such pain is
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听力文摘：科学家用远古贝壳了解过去
Scientists Use Ancient Shells To Learn About The Past 科学家用远古贝壳了解过去 If you were traveling from the United States to Singapore, a guide book could tell you what sort of climate to expect. But if, like paleontologists and geologi
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听力文摘：气球不见之后发生了什么?
Fairs, carnivals, festivals or anywhere you can buy helium-filled balloons, youre sure to see at least one balloon rising into the sky after someone accidentally lets it go off. 在集市，嘉年华，节日聚会还有任何其他地方你都能买到
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听力文摘：运动会引发头痛吗？
Does Exercise Trigger Headache? 运动会引发头痛吗？ Dear A Moment of Science, 亲爱的片刻科学家， I like to exercise, but I suffer from migraines and worry that getting my sweat on at the gym could trigger a headache. Am I right to be
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听力文摘：为什么高海拔会引起头痛？
Why Does Altitude Cause Headache? 为什么高海拔会引起头痛？ Mountain climbers face many dangers as they brave the cold winds and icy slopes and jagged cliffs of the peaks they climb. But one of the most serious dangers they face is all in
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听力文摘：短信脖子病
Beware Of Text Neck! 小心短信脖子 Remember when the Blackberry was all the rage, and people worried about straining their thumbs typing on that tiny keyboard? 还记得黑莓很流行的时候，人们担心在那个小小的键盘上拉紧拇指
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听力文摘：什么是鲜奶油？
What Is Whipped Cream? 什么是鲜奶油？ It adorns ice cream sundaes, pumpkin pie, gingerbread, and hot chocolate. Its sweet creaminess tantalizes taste buds and sends dieters running from the scale. Did you ever wonder why heavy cream whips into
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听力文摘：糜鹿也有关节炎？
Did You Know That Moose Can Have Arthritis? 糜鹿也有关节炎？ Its easy to tell, even at a glance, that people and moose are pretty different. Moose, at least males, have big, wing shaped antlers. People have no antlers. Moose are herbivores, e
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