Two space probes lift the lid on Jupiter’s magnetosphere.
Even Stanley Kubrick couldn’t have directed it better. In the first days of 2001, two spacecraft, Cassini and Galileo, met at Jupiter 400 million kilometres from Earth, to study the mysterious forces emanating from the giant planet.
The first analysis of the data they sent back has now been unveiled 1-7 . It paints a dramatic picture of the planet’s invisible magnetosphere – looping magnetic fields, crackling radi
Four years ago, torrential rains battered the Southern US, mudslides struck in Peru – and the inhabitants of Canada`s west coast saved up to 30% on their winter heating bills. The cause? El Niño, a huge temperature shift in the Pacific Ocean which spawns climate changes globally. Today, using satellite Earth observation data, scientists are detecting the early warning signs of a new El Niño event and predicting that it will develop over the next 3 to 6 months, bringing climate changes to countries th
Research chemists at the University of Warwick have devised and patented a new process called Living and Controlled Radical Polymerisation which can cheaply and easily grow designer polymers (plastics). They have already used the process to produce a wide range of designer polymer designs that are now being tested by major companies for use in applications as diverse as hairspray, anti-obesity drugs and inkjet printer ink.
Previously “designer-polymers” could only be synthesised by resorting
A team of researchers at the Universitat Autònoma de Barcelona, co-ordinated by Professors Josep Egozcue and Cristina Templado, has shown for the first time that the older a man is, the more probable it is that his spermatozoa will present chromosome anomalies. This is the first time that a lineal relationship has been established with precision between these two factors. The conclusions of this study, published in the European Journal of Human Genetics, increase the importance of the father’s age in
A study carried out by researchers at the Universitat Autònoma de Barcelonashows that protecting natural spaces does not prevent invasion by foreign vegetation species. Montserrat Vilà and Jordi Pujadas, researchers at the CREAF, have published the study, the first to quantify the relationship between species invasions and human activity on a regional scale, in Biological Conservation.
The introduction of foreign species is a global phenomenon which has negative effects on the conservation o
Researchers have developed a sophisticated way of measuring the print quality of paper. The work, published today in the Institute of Physics journal, Measurement Science and Technology, describes how Jari Palviainen and colleagues at the Universities of Joensuu and Oulu in Finland, use what is known as a diffractive optical element-based sensor to investigate how laser-light interacts with paper before and after laser printing with colour ink.
The physical properties of paper such as colou
A space probe carrying British-designed and operated instruments has helped scientists to understand the magnetosphere surrounding Jupiter better than ever before.
Its magnetosphere was observed to contract in response to shock waves generated at the Sun, the first time scientists have been able to clearly observe how changes in the solar wind affect the magnetosphere of this giant planet.
In addition an unexplained pulsating X-ray hot spot near Jupiter’s North pole has been obser
Scientists at the University of Sussex have provided the key to resolving a 30-year-old controversy in evolutionary biology: what proportion of the differences between similar species came about as a result of natural selection, and how many are just the result of ‘random genetic drift’. In a paper in this week’s issue of Nature (28 February), Sussex biologists put the ratio at 45:55.
The DNA sequences of humans and chimpanzees differ by less than 2% but this adds up to about 350,000 amino a
Europe’s showpiece in climate monitoring is called Envisat. Fully equipped, the largest, most complex, and most powerful Earth observation satellite of the European Space Agency (ESA) is 25 meters high, ten meters wide and weighs over eight tons, scheduled for launch in the night of 28 February /1st March on an Ariane 5 launcher.
Europe’s flying behemoth is on the trail of climate change. It will deliver data about global warming, ozone depletion and climate change for at least five
New theory shows that high performance needn’t mean high risk.
For man-made systems such as machines and markets, catastrophe lurks somewhere between high risk and high performance. US physicists may have found a way to strike the optimal balance 1 .
This trade-off is familiar to the financial world. Brokers develop investment portfolios to provide the best returns within a specified level of risk. Mark Newman and co-workers at the Santa Fe Institute in New M
The issue of insulin-dependent diabetes has long been discussed. No wonder, as the problem concerns more than 5% of the world population. However, despite the enormous efforts and funds spent on its solution, the scientists so far have failed to replace the injections with pills. The difficulty is that insulin (like any other polypeptide) gets easily destroyed under the influence of proteolytic enzymes in the stomach and small intestines. The scientists have tried a variety of means: insulin plasters
Europe is one step ahead of the US in the development of a new type of semiconductor structure consisting of incredibly thin nano threads. A Swedish team headed by Professor Lars Samuelson at the LTH, the Lund Institute of Technology, Lund University, has taken the lead in this field of research. “In nano threads, we can combine semiconductor materials that no one has previously been able to grow. This results in entirely new electrical properties: a single electron can be monitored and made to run a
Women are seven times more likely than men to admit to a partner that they have a sexually acquired infection, reveals research in Sexually Transmitted Infections. The findings were irrespective of age or type of infection.
The findings are based on three population surveys of sexual behaviour carried out in France in the early to mid 1990s. Two of the surveys comprised a total of around 7000 adults; the third dealt with just over 6000 adolescents from 15 upwards. All those surveyed were ask
The research group Multimedia Lab of the Ghent University (Belgium) succeeded in putting the first MPEG-21 application online. MPEG-21 technology is the most recently developed technology for multimedia applications. After the MPEG-1, -2, -4, and MPEG-7 standards, MPEG-21 is currently considered to be one of the most promising new standard in the field of multimedia systems and applications.
The research activities of Multimedia Lab at Ghent University, Belgium (Department of Electron
The Scotia Sea, located between the Antarctic and the tip of South America, acts like a ‘blender’ on the very cold ocean waters that influence global ocean circulation patterns and ultimately climate, according to new research from the University of East Anglia (UEA) and published today (28 February) in the international journal Nature.
The research, carried out by Dr Karen Heywood, Dr David Stevens and Dr Alberto Naveira Garabato, shows that the dense, cold waters formed in the Weddell Sea
Community and Member Feedback Shapes New Royalty-Free Draft
The World Wide Web Consortium (W3C) today published a revised Patent Policy Working Draft which is based on strong, explicit commitments to producing Royalty-Free (RF) specifications. To achieve the goal of producing Royalty-Free specifications, the draft requires all who participate in the development of W3C Recommendations to make any essential patents they hold available for free.
The option which would have permi
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