日期:2013-07-10 Wildfires produce a witch's brew of carbon-containing particles, as anyone downwind of a forest fire can attest(证明) . A range of fine carbonaceous(含碳的) particles rising high into the air significantly degrade air quality, damaging human and... 阅读全文>> 日期:2013-07-09 An unlikely material, cubic boron(硼) arsenide(砷化物) , could deliver an extraordinarily high thermal conductivity -- on par with(与同等水平) the industry standard set by costly diamond -- researchers report in the current issue of the journa... 阅读全文>> 日期:2013-07-09 A new study, by Marco Malagodi from the Universit degli Studi di Pavia in Italy and colleagues, uses a range of analytical methods to identify the techniques used by violin master Antonio Stradivari in the 17th century, and attempts to replicate his... 阅读全文>> 日期:2013-07-09 Green spaces, trees and bodies of water are must-have design features for future development in Sydney's suburbs after researchers found that by 2050 global warming combined with Sydney's urban heat island effect could increase temperatures by up to... 阅读全文>> 日期:2013-07-09 Environmental researchers at Harvard University have published evidence that significant reductions in mercury emissions will be necessary just to stabilize current levels of the toxic element in the environment. So much mercury persists in surface... 阅读全文>> 日期:2013-07-09 A new study led by Florida State University researcher Stephanie Pau shows that tropical forests are producing more flowers in response to only slight increases in temperature. The study examined how changes in temperature, clouds and rainfall affec... 阅读全文>> 日期:2013-07-09 When people sing in a choir their heart beats are synchronised(同步) , so that the pulse of choir members tends to increase and decrease in unison(一致地) . This has been shown by a study from the Sahlgrenska Academy at University of Gothenburg... 阅读全文>> 日期:2013-07-08 Snails in the Great Barrier Reef literally jump for their life to avoid predators. But will they be able to maintain these life-saving jumps, with rising sea temperatures? A new study, to be presented at the Society for Experimental Biology meeting... 阅读全文>> 日期:2013-07-08 Mysterious bursts of radio waves originating from billions of light years away have left the scientists who detected them speculating about their origins. The international research team, writing in the journal Science, rule out terrestrial(陆地的... 阅读全文>> 日期:2013-07-08 Researchers have found that bipedal(两足动物的) desert rodents manage to compete with their quadrupedal(四足的) counterparts by using a diverse set of jumps, hops and skips. A new study, to be presented at the Society for Experimental Biology me... 阅读全文>> 日期:2013-07-08 Lake Vostok, buried under a glacier in Antarctica, is so dark, deep and cold that scientists had considered it a possible model for other planets, a place where nothing could live. However, work by Dr. Scott Rogers, a Bowling Green State University... 阅读全文>> 日期:2013-07-08 Ocean currents have a big impact on weather and climate. Without the Gulf Stream, the climate of Northern and Western Europe would be cooler. Scientists at ETH Zurich now uncovered that also relatively small swirling motions in the ocean, so called... 阅读全文>> 日期:2013-07-05 A new study has cast doubt on the claim that crabs may have disappeared from Antarctica only to return due to warming seas. The theory surfaced two years ago following the discovery of a major colony of King crabs (Lithodidae) in the Palmer Deep, a... 阅读全文>> 日期:2013-07-05 For years, pilots flying into combat have jammed enemy radar to get the drop on their opponents. It turns out that moths can do it, too. A new study co-authored by a University of Florida researcher shows hawkmoths(天蛾) use sonic pulses from thei... 阅读全文>> 日期:2013-07-05 Flapping insects build up an electrical charge that may make them more easily snared by spider webs, according to a new study by University of California, Berkeley, biologists. The positive charge on an insect such as a bee or fly attracts the web,... 阅读全文>> 日期:2013-07-05 Call it a bird's eye view of migration. Scientists are taking a fresh look at animal movement with a big data approach that combines GPS tracking data with satellite weather and terrain information. The new Environmental-Data Automated Track Annotat... 阅读全文>> 日期:2013-07-05 Fossil fuel companies have been funding smear(诽谤,污点) campaigns that raise doubts about climate change, writes John Sauven in the latest issue of Index on Censorship magazine. Environmental campaigner Sauven argues: Some of the characters invo... 阅读全文>> 日期:2013-07-05 Some blue whales off the coast of California change their behavior when exposed to the sort of underwater sounds used during U.S. military exercises. The whales may alter diving behavior or temporarily avoid important feeding areas, according to new... 阅读全文>> 日期:2013-07-05 New research shows that existing copper resources can sustain increasing world-wide demand for at least a century, meaning social and environmental concerns could be the most important restrictions on future copper production. Researchers from Monas... 阅读全文>> 日期:2013-07-05 An 1,800-year-old carved stone head of what is believed to be a Roman god has been unearthed in an ancient rubbish dump. Archaeologists made the discovery at Binchester Roman Fort, near Bishop Auckland, in County Durham. First year Durham University... 阅读全文>> |
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