标签：English Digest 相关文章
How Insects Fight Bacteria And Parasites Imagine that youre an insect, and that youve fallen ill because some bacteria or parasites have invaded your body. If you want to make it to a ripe old bug age, your body will need to fight off these invaders.
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Math Hurts My Brain Why? Its time to go again to the A Moment of Science mailbag. A listener writes: Dear A Moment of Science, Im not a math person. In fact, anytime I have to deal with numbers, let alone solve an actual math problem??which, thankful
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Do Colors Have Smells? Have you ever heard the color blue? Or tasted the musical note F-sharp? For most people, in both cases the answer is no. But for some people blue has a particular sound or shape, and F sharp has a slightly sour taste. This unus
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Why Does Crying Make Your Nose Run? 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 does this happen? Whats the connect
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Why Lettuce Should NOT Be Frozen Stroll through the frozen foods section of the supermarket and youll find frozen corn, peas, and beans. A Moment of Science wonders, why isnt there any frozen lettuce? 图片1 Why Cant I Freeze Lettuce? Freezing is a
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Why Do You Become Dehydrated When Sick? 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, w
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Is There Life On Other Planets? 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 m
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How Do Scientists Study Deadly Diseases? I have a trivia question for you, Don. What do the Ebola virus, anthrax, and the avian flu have in common? 图片1 Researching Disease After all, theyre some of the most dangerous, deadly diseases around. On t
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What Is A Concussion? If you follow football, hockey, soccer, or boxing, then you know that athletes in these and other contact sports are at constant risk for a concussion. Every season several football players miss a number of games after absorbing
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Why Do Dark Circles Form Under My Eyes? Its eleven oclock Sunday morning, and youve just woken up after a late night of carousing. You stumble out of bed, brace yourself on the bathroom sink and blink into the mirror. 图片1 There, under your eyes,
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Ben Franklin And A Very Furry Situation When they hear the name Ben Franklin, many folks think of the Declaration of Independence, the Continental Congress and things like that. Not as many people remember that Franklin was an inventor . . . and a go
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Ben Franklin Did Not Get Struck By Lightning Did Ben Franklin really discover electricity with a kite? Everybody has heard the famous story of how pioneering experimenterand part-time founding fatherBen Franklin tied a key to a kite string and flew t
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What Are Sulfites? 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? 图片1 Chemical Compounds Sulfites are chemical compounds found naturall
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The Science Of The Siesta When you go back to work or class after lunch, why is it so hard to stay awake? Although we get energy from food, we also use lots of energy to digest it. Your energy use increases 25-50% as you digest a meal. With all that
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What Makes White Gold White? Many people associate the metal gold with the color gold. But, some gold jewelry is not golden at all: its white. Golden Color Gold is one of the heaviest and softest metals. Pure gold, called 24-carat gold, is so soft th
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Ever since money was invented there have been people trying to fake it. Thats why its important for everyone to know how to spot a fake banknote. And the best thing to do is to know by heart what genuine notes should look like. Here is our expert Lee
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Lack of money can cause big financial problems for people. While the banks are closing down branches in city centres, weve seen a growth of pawnbrokers in the high streets.Paul Atkin, the director of online pawnbroker Borro. Here he explains the hist
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A hundred years after the first youth hostel was created, do such establishments have a part to play in the 21st century? After all one of the traditional images is of big draughty rooms that you have to share with snoring strangers, while being orde
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Spacesuits are the ultimate in couture. Think about it: Custom-fit garments, dozens of layers deep, made from innovative textiles that can run US$5,000 per square foot, with eye-catching accessories. Gemini suits, moon-dust-coated boots and Neil Arms
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Tip for studying overseas Part one Being surrounded by an unfamiliar culture, environment and social norms, while being away from family and friends, is something which more and more Chinese students experience in the quest to gain a western educatio
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