Scientists using NASA’s Swift satellite have detected a new kind of cosmic explosion. The event appears to be a precursor to a supernova, which is expected to reach peak brightness in about a week’s time. UK astronomers and their colleagues around the world are watching closely as they have never seen an explosion of this kind before.
Satellites and the world’s largest telescopes are now trained on the sight, watching and waiting. The explosion has the trappings of a gamma-ray burst (GRB), the most distant and powerful type of explosion known. Yet this explosion, detected on February 18 2006, was very much closer and 100 times longer than the typical gamma-ray burst. And it possesses characteristics never seen before.
Dr Julian Osborne, lead investigator for Swift at the University of Leicester said "The bright X-ray source seen when Swift slewed to the burst varied rather slowly for about 40 minutes, quite different to the very rapid decline of more normal GRBs. It did later decline much more rapidly, like a normal GRB, so the challenge will be to find a physical description of the explosion expanding into the host galaxy gas which matches this new pattern"
Julia Maddock | alfa
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Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
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In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
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COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.
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'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.
Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...
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