日期：2012-11-01 Stanford University scientists have built the first solar cell made entirely of carbon, a promising alternative to the expensive materials used in photovoltaic（光电的） devices today. The results are published in the Oct. 31 online edition of the j... 阅读全文>>

日期：2012-11-01 Habits are behaviors wired so deeply in our brains that we perform them automatically. This allows you to follow the same route to work every day without thinking about it, liberating your brain to ponder（考虑，沉思） other things, such as what to... 阅读全文>>

日期：2012-11-01 Eating at least two servings of oily fish a week is moderately but significantly associated with a reduced risk of stroke, finds a study published on the British Medical Journal website. But taking fish oil supplements doesn't seem to have the same... 阅读全文>>

日期：2012-11-01 There's good news for fans of black raspberries（黑树莓） : A U.S. Department of Agriculture (USDA) scientist and his commercial colleague have found black raspberries that have resistance to a disease-spreading aphid（蚜虫） . Agricultural Research... 阅读全文>>

日期：2012-11-01 A colourful new view of the globular star cluster（球状星团） NGC 6362 was captured by the Wide Field Imager attached to the MPG/ESO 2.2-metre telescope at the European Southern Observatory's La Silla Observatory in Chile. This new picture, along wi... 阅读全文>>

日期：2012-10-31 In today's globalized economy, a large percentage of apparel（服装，衣服） products are multinational products as raw materials are produced, transported and assembled in different countries. However, consumers have little information about where an... 阅读全文>>

日期：2012-10-31 High birth weight, rapid weight gain and having an overweight mother who smokes can all increase the risk of a baby becoming obese later in childhood, research by experts at The University of Nottingham has found. The study, published in the latest... 阅读全文>>

日期：2012-10-31 People tend to think of ozone as something in the upper atmosphere that protects Earth's surface from UV radiation. At the ground level, however, ozone is a pollutant that damages crops, particularly soybean. Lisa Ainsworth, a University of Illinois... 阅读全文>>

日期：2012-10-31 Monkeys shy away from bystanders during copulation（交配） , irrespective of the bystanders' gender or rank. The new study, by Anne Overduin -- de Vries and her team from the Biomedical Primate Research Centre in the Netherlands, also suggests that... 阅读全文>>

日期：2012-10-31 Animals use their noses to focus their sense of smell, much the same way that humans focus their eyes, new research at the University of Chicago shows. A research team studying rats found that animals adjust their sense of smell through sniffing tec... 阅读全文>>

日期：2012-10-31 Arboreal（栖息在树上的） tarantulas（狼蛛，毒蛛） are known from a few tropical places in Asia, Africa, South and Central America and the Caribbean. These tarantulas generally have a lighter build, thinner bodies and longer legs, better suited for t... 阅读全文>>

日期：2012-10-30 Scientific research has provided us with a fundamental understanding of how light (via photons) and electricity (via electrons) move within and between materials at the micrometer or nanometer levels, making possible a wide variety of miniature devi... 阅读全文>>

日期：2012-10-30 Smoking reduces life expectancy by ten years in Japan, but much of the risk can be avoided by giving up smoking, a paper published on bmj.com shows. Previous studies in Japan suggested smoking reduced life expectancy by only a few years compared wit... 阅读全文>>

日期：2012-10-30 Social animals usually congregate（聚集） for protection or mating or to capture bigger prey, but a University of California, Berkeley, biologist has found that the terrestrial（陆地的） hermit crab has a more self-serving social agenda: to kick ano... 阅读全文>>

日期：2012-10-30 Silicon is the workhorse of the electronics industry, serving as the base material for the tiny transistors that make it possible for digital clocks to tick and computers to calculate. Now scientists have succeeded in creating near-atomically flat s... 阅读全文>>

日期：2012-10-30 Had a bad day? Extending your normal exercise routine by a few minutes may be the solution, according to Penn State researchers, who found that people's satisfaction with life was higher on days when they exercised more than usual. We found that peo... 阅读全文>>

日期：2012-10-30 Smoke-free legislation was associated with substantially fewer hospitalizations and deaths from heart and respiratory（呼吸的） diseases, according to research in the American Heart Association journal Circulation. Researchers reviewed 45 studies co... 阅读全文>>

日期：2012-10-30 The Cretaceous Period（白垩纪） of Earth history ended with a mass extinction that wiped out numerous species, most famously the dinosaurs. A new study now finds that the structure of North American ecosystems made the extinction worse than it might... 阅读全文>>

日期：2012-10-26 The ostrich（鸵鸟） -like dinosaurs in the original Jurassic Park movie were portrayed as a herd of scaly, fleet-footed animals being chased by a ferocious（残忍的） Tyrannosaurus rex. New research published in the journal Science reveals this depic... 阅读全文>>

日期：2012-10-26 Most of the more than 6,000 species of frogs in the world lay their eggs in water. But many tropical frogs lay their eggs out of water. This behavior protects the eggs from aquatic（水生的） predators, such as fish and tadpoles（蝌蚪） , but also in... 阅读全文>>