单词:semipermeable membranes
单词:semipermeable membranes 相关文章
Do you know so many of you will climb into your cars today perhaps to shuffle your children to soccer, to football, make their (refer to the cars) run to the grocery store. But do you also know what's
Science and Technolgy. 科技。 Deep-sea exploration. 深海探索。 The age of Aquarius 1. 宝瓶时代1。 Inner space is almost as hard to explore as outer space. 探太空难,察深海亦不易。 JAMES CAMERON knows how to make a splash. Lit
Daylight Turns Thin Plastic Barrier into Germ-Killing Material Daylight-powered germ-killing equipment may someday help protect health workers from deadly microorganisms like Ebola virus disease. That is a finding from a study published in the journa
By David McAlary Researchers have shown that it may be possible to prevent sexual transmission of the AIDS virus HIV with a compound now in the experimental stage. Female monkeys who received it vagin
Rest Position - a position the jaw adopts when at rest with the lips lightly together. Reticular fibres - are fine type III collagen fibres forming a net-like supporting framework or reticulum. They a
This is Scientific Americans 60-Second Science. Im Karen Hopkin, this will just take a minute. Anyone whos ever cut up an onion knows that some smells can actually be painful. Now, researchers from Baltimore and Denver are closer to understanding why
When people suffer from a migraine, they often retire to a cave-like dark room. But exactly why does bright light hurt the migraine sufferer? A possible answer was published this week in the online issue of journal Nature Neuroscience. A big clue was
Graphene: The Material of the 21st Century 21世纪的新材料石墨烯 Graphene is a type of graphite mineral. Experts often call it 'The Material of the 21st Century' because of its special properties. Some U.S. companies are already using graphen
If you sucked all of the moisture out of your brain and broke it down to its constituent nutritional content, what would it look like? 如果将你大脑里所有的水分都吸干,然后按不同的营养成分进行分类,会是怎样呢? Mos
How Do Breathalyzers Work? If a police officer sees you driving in a reckless manner, chances are youll be pulled over and asked to breathe into a special machine that measures your blood alcohol content. But how can your breath reflect how much alco
Science and Technology 科技 Clean water 清洁水源 Silver threads of life 生命的银丝带 A water filter that kills bacteria, rather than just removing them 新滤水器能够消灭细菌,而不单单是排除细菌 MORE than a billion peopl
Researchers in Sydney are leading a new international effort to make desalination more environmentally friendly. Current techniques tend to use excessive amounts of energy or are heavily reliant on chemicals. The University of Technology in Sydney is
Before I talk about that, 谈到这之前 I've written down at the bottom there 我在底下标出了 the slope of this curve, this straight line. 这条曲线的斜率,即这条直线 It's three-quarters, roughly, 大约为3比4 which is less than
When, in 1960, still a student, 1960年我还是学生时, I got a traveling fellowship 拿到出国留学的奖学金, to study housing in North America. 研究北美的住宅建筑。 We traveled the country. 我们游遍美国, We saw public
Plum-pudding is the term bestowed upon certain fragmentary parts of the whale's flesh, here and there adhering to the blanket of blubber, and often participating to a considerable degree in its unctuousness. It is a most refreshing, convivial, beauti
When you're out to eat, ordering a vegetable soup is a way healthier move than reaching into the bread basket. But it's not just about the calories you'll save. Hot liquids can also help you feel more full, so you'll actually eat less by the time you
Deep-sea exploration 深海探索 The age of Aquarius 1 宝瓶时代1 Inner space is almost as hard to explore as outer space 探太空难,察深海亦不易 Have you seen Camerons latest? 卡梅隆的新作你看了吗? JAMES CAMERON knows how t
Science and technology 科学技术 Microbiomics 微生物组学 A virus shield 病毒防护 Viruses help keep people disease-free 病毒能够帮助人类免遭疾病 THE story of the microbiomethe community of tiny organisms that coexist symbiotica
IF CALIFORNIA were not already so famous for Silicon Valley and Hollywood, it might be renowned for the cluster of water-technology firms in its San Diego County. The reverse-osmosis (RO) spiral module, the trick that underpins turning sea- and waste