Did Ben Franklin really discover electricity with a kite? 本.富兰克林真的靠一只风筝发现了电吗？ Everybody has heard the famous story of how pioneering experimenterand part-time founding fatherBen Franklin tied a key to a kite string...
Youve just snacked on rice cakes. Why are you still hungry? That yummy feeling of being pleasantly full depends partly on the weight and volume of what you eat. As the stomach churns away at a large enough weight and volume of food, you start feeling...
Imagine getting on a train at twelve noon and heading out on a four-hour trip to another town. 设想一下：您正乘坐一辆中午12点整出发的火车前往另外一个城市，路途耗费4个小时。 Youd expect to arrive at four oclock in...
Youve just opened a bottle of wine for dinner. On the label, you see these words: Contains Sulfites. What are sulfites? And what are they doing in your wine? 设想一下，你在晚餐时刚刚打开了一瓶酒，你会在酒瓶的标签上看到：含...
When you have a cold or flu, the doctor (or Dr. Mom) may tell you to drink lots of fluids. But did they ever explain why you need to guzzle all that water and juice? The extra fluid helps prevent dehydration, which can make you feel even worse, and m...
Why Dont Marks On The Surface Of The Moon Disappear?月球表面的记号为何不会消失? In 1969 when Neil Armstrong said Thats one small step, he made a lasting impression. On the moon, that is. Marks on the surface of the moon dont disappear th...
Why Does Crying Make Your Nose Run?哭的时候为什么会流鼻涕? When you burst out crying, you expect the bleary red eyes and the rivers of tears that stream down your cheeks. But on top of all that, your nose starts to run like a faucet. Why d...
When you go back to work or class after lunch, why is it so hard to stay awake? 当我们用完午餐回去工作或上课时，为什么很难保持清醒呢？ Although we get energy from food, we also use lots of energy to digest it. Your energy u...
Many people associate the metal gold with the color gold. But, some gold jewelry is not golden at all: its white. 很多人都认为金子就应该是金色。但一些黄金首饰的颜色并不是金色，而是白色。 Golden Color 金色 Gold is...
Acne: the scourge of adolescence. Most people endure it at some point, and cant wait to be rid of the combination of whiteheads, blackheads, pimples, and pustules that comprise the skin condition that affects over 80% of teenagers and nearly 20% of a...
Weve all been hearing about ongoing Mars exploration, and how water probably used to be abundant there. And a water spewing volcano was recently discovered on a small moon orbiting Saturn. Water is one sign that life may exist or have existed at some...
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 that sleepy majority of the brain!...
On todays Moment of Science, well be sniffing our way through a controversial culinary conundrum: the great cilantro debate. 今天的《科学一刻》栏目，我们将来探讨一个有争议性的烹饪难题：关于香菜的大辩论。 Accordi...
Well be kindwe wont use any sound effects on todays program. Instead, imagine your eighth-grade classroom, and your childhood nemesis creeping quietly to the chalkboard. He shapes his hand like a claw, grins evilly, and slowly, torturously, drags his...
If you wipe a finger across a household surface that hasnt been cleaned in the last few days, chances are youll come into contact with dust. Look around and youll find the stuff everywhere, from the particles floating in a sunbeam to the fine layer o...
