标签：中医文摘 相关文章
ambience: gorilla vocalizations The creatures of the rain forest are at risk from a whole range of human activities -- from hunting to destruction of their habitat. Scientists say that in central Africa, some wild animals are facing another threat fr
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Why Doesnt Honey Spoil? If you havent cleaned out your refrigerator in a while, there might be a nasty surprise waiting for you. There, in a forgotten piece of Tupperware, lurks the ravioli you didnt finish three weeks ago. Opening the lid with curio
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Why Did Cleopatra Wear Makeup? Over five thousand years ago, the ancient Egyptians used eye shadow, not only for cosmetic but practical purposes as well. Dark pigment painted around the eye helped protect the eye from the bright midday sun glaring of
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Why Does My Body Want To Snack? Sometimes a snack quiets your growling stomach. But sometimes you just feel like munching, even though youre not really hungry. French researchers recently found that this second type of snack attack is harder on your
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If blood didnt circulate through our bodies, carrying oxygen and nutrients, we wouldnt be able to live. Blood is so important to life that the body constantly makes new blood. To do this, the body must produce the liquid part of blood, called plasma,
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How Does Ice Cool Drinks? Heres something we tend to take for granted: drop a few ice cubes into a glass of water at room temperature, and in a few minutes the water will cool. How does this work? Heat is a measure of molecular activity: the faster a
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The Worlds Biggest Spittoon In the spring, the eastern half of North America turns into one big spittoon for spittlebugs. Wandering through a meadow, its easy to spot the gobs of foam they produce, stuck to the stems of various plants. What makes spi
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Why Do Stars Twinkle? If youve ever glanced skyward on a clear evening, youve probably noticed with some wonderment the sheer numbers of stars. Some are tiny, barely visible points. Others radiate strong white light. And from our earthly vantage poin
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Why Does Spot Have Spots? In dogs with multicolored coats, white areas have no pigment cells. Black, brown or yellow areas, on the other hand, get their color from special pigment cells. When a dog is just an embryo, these pigment cells travel from t
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Can You Predict The Future? Its impossible to know the future. We can guess, but no one has actual knowledge of whats going to happen down the road. But if youre someone who trusts her feelings, youre more likely to accurately predict future events t
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Does Bacon Stop Nosebleeds? Time to go the A Moment of Science mailbag. A listener writes: Dear A Moment of Science, Ive heard that pork can be used to stop a nosebleed. Is this true, or just a myth? Well, there are lots of anecdotal stories about do
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Science Hero: Jules Verne 科学英雄：儒勒 凡尔纳 儒勒?凡尔纳（Jules Verne，1828年2月8日－1905年3月24日），法国小说家、博物学家，现代科幻小说的重要开创者之一。他一生写了六十多部大大小小的科
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Racial Stereotypes and Memory 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 people. That is, many folks assign other individuals to racial cat
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Why Is It So Difficult To Spot A Plane In The Air? 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 were looking toward where the sound was coming from? Well, this moment of scien
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Glow In The Dark Cats, Monkeys, And HIV Have you heard the one about the jellyfish, the monkey, and the glow in the dark cat? Actually, its no joke: scientists are experimenting with ways to combat HIV and AIDS by injecting cats with genes taken from
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How X-Ray Technology Is Helping Examine Millets Artwork In the 1840s, a new painting by Jean Francois Millet was unveiled in Paris. But, horror of horrors, no one seemed to like it! Some critics thought the images were too violent; others thought the
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Why Does Plastic Wrap Cling To Itself? What makes kitchen plastic wrap cling so maddeningly to itself, and so conveniently to the sides of bowls and plates? Plastic wrap clings for two reasons: its elastic and its sticky. That probably seems pretty o
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Dead Zones in the Ocean 所谓海洋死区是指由于海水富营养化日益严重，导致海水中含氧量减少，鱼类等生物无法生存的区域。科学家介绍，人类过量使用化肥、大量生活垃圾、车辆和工厂排放的废
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Pump You Up, Break You Down 科学研究证明，使用兴奋剂会对人的身心健康产生许多直接的危害。使用不同种类和不同剂量的禁用药物，对人体的损害程度也不相同。一般说来，使用兴奋剂的主要危害
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Swimming With Germs 到游泳馆游泳消暑逐渐成为市民推崇的运动之一。尽管游泳馆都要求游泳者必须办理健康证，但健康证多流于形式，无法起到防范的作用。目前，市内一些大的游泳馆的水质基本
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