日期:2016-06-16 Like a pair of human hands, certain organic molecules have mirror-image versions of themselves, a chemical property known as chirality. These so-called handed molecules are essential for biology and have intriguingly been found in meteorites on Eart... 阅读全文>>

日期:2016-06-16 Gravitational waves from a second pair of colliding black holes has validated the landmark discovery from earlier this year that confirmed Einsteins general theory of relativity. Rochester Institute of Technology scientists contributed to the initia... 阅读全文>>

日期:2016-06-14 In 50 years, summers across most of the globe could be hotter than any summer experienced by people to date, according to a study by scientists at the National Center for Atmospheric Research (NCAR) in Boulder, Colo. If climate change continues on i... 阅读全文>>

日期:2016-06-14 A new study found that after restricting sleep to 5 hours per night, caffeine use no longer improved alertness or performance after three nights. Results show that relative to placebo, caffeine significantly improved Psychomotor Vigilance Task (PVT)... 阅读全文>>

日期:2016-06-10 Decades of unregulated industrial waste dumping in areas of the Great Lakes have created a host of environmental and wildlife problems. Now it appears that Lake Michigan painted and snapping turtles could be a useful source for measuring the resulti... 阅读全文>>

日期:2016-06-10 A study appearing in the journal PLOS ONE this week shows that bioluminescence -- the production of light from a living organism -- is more widespread among marine fishes than previously understood. Most people are familiar with bioluminescence in f... 阅读全文>>

日期:2016-06-10 Got LED light? Display cases and grocery stores increasingly do, and thats bad news for milk drinkers. Cornell University researchers in the Department of Food Science found that exposure to light-emitting diode (LED) sources for even a few hours de... 阅读全文>>

日期:2016-06-10 At the center of a galaxy cluster, 1 billion light years from Earth, a voracious, supermassive black hole is preparing for a chilly feast. For the first time, astronomers have detected billowy clouds of cold, clumpy gas streaming toward a black hole... 阅读全文>>

日期:2016-06-10 London, United Kingdom, June 9, 2016: The results of a study presented today at the European League Against Rheumatism Annual Congress (EULAR 2016) showed that the likelihood of achieving sustained remission in early rheumatoid arthritis (RA) is sig... 阅读全文>>

日期:2016-06-04 New research shows that intelligence is not fixed but can be boosted throughout adulthood by family members, bright mates and intellectually stretching careers. 一项新研究显示,智力不是固定不变的,而是在整个成年期都会受到影响,家庭成员、聪明的配偶以... 阅读全文>>

日期:2016-06-04 It is a classic playground scare story - if you swallow chewing gum it will stay in your digestive system for seven years. 有个经典的大人拿来吓唬小孩的谎言如果你吞下了口香糖,它将在你的消化系统里停留七年。 But according to scientists at the American... 阅读全文>>

日期:2016-06-03 A video related to this research can be found here: https://youtu.be/170ceT_dvcE More than 50 percent of todays population lives in cities. According to the United Nations Development Programme, that number is predicted to rise to 70 percent by 2050... 阅读全文>>

日期:2016-06-03 The question, Where do domestic dogs come from?, has vexed scholars for a very long time. Some argue that humans first domesticated wolves in Europe, while others claim this happened in Central Asia or China. A new paper, published in Science, sugge... 阅读全文>>

日期:2016-06-03 You cant sign up for the quantum internet just yet, but researchers have reported a major experimental milestone towards building a global quantum network - and its happening in space. With a network that carries information in the quantum propertie... 阅读全文>>

日期:2016-06-03 Astronomers using the upgraded Karl G. Jansky Very Large Array in New Mexico have produced the most detailed radio map yet of the atmosphere of Jupiter, revealing the massive movement of ammonia gas that underlies the colorful bands, spots and whirl... 阅读全文>>

日期:2016-06-02 Earths magnetic field shields us from deadly cosmic radiation, and without it, life as we know it could not exist here. The motion of liquid iron in the planets outer core, a phenomenon called a geodynamo, generates the field. But how it was first c... 阅读全文>>

日期:2016-06-01 The vibrations and pulses that male fiddler crabs produce when they are trying to lure females into their burrows to mate are surprisingly informative. These signals serve as a type of Morse code that the females decipher to learn more about the siz... 阅读全文>>

日期:2016-06-01 Many animals depend on their microbiome to digest their food. Symbiotic microorganisms produce enzymes their hosts cannot, and these work alone or together with the animals own enzymes to break down their food. Many plant-feeding insects need microb... 阅读全文>>

日期:2016-06-01 A team of American and Chinese researchers has developed a new tool that could aid in the quest for better batteries and fuel cells. Although battery technology has come a long way since Alessandro Volta first stacked metal discs in a voltaic pile t... 阅读全文>>

日期:2016-05-31 Garbage, nutrients and tiny animals are pushed around, suspended in the worlds oceans by waves invisible to the naked eye according to a new 3-D model developed by mathematicians at the University of Waterloo. David Deepwell, a graduate student, and... 阅读全文>>

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