Invisibility cloak 'step closer' http://news.bbc.co.uk/2/hi/science/nature/7553061.stm
Scientists in the US say they are a step closer to developing materials that could render people invisible. Researchers at the University of California in Berkeley have developed a material that can bend light around 3D objects making them "disappear". The materials do not occur naturally but have been created on a nano scale, measured in billionths of a metre. The team says the principles could one day be scaled up to make invisibility cloaks large enough to hide people. Stealth operations The findings, by scientists led by Xiang Zhang, were published in the journals Nature and Science. The new system works like water flowing around a rock, the researchers said. Because light is not absorbed or reflected by the object, a person only sees the light from behind it - rendering the object invisible. The new material produces has "negative refractive" properties. It has a multi-layered "fishnet" structure which is transparent over a wide range of light wavelengths. The research, funded by the US government, could one day be used in military stealth operations - with tanks made to disappear from the enemies' sight. ------------------------------------ -------------------------- Want to discuss this topic? Head on over to our discussion list, [EMAIL PROTECTED] -------------------------- Brooks Isoldi, editor [EMAIL PROTECTED] http://www.intellnet.org Post message: [email protected] Subscribe: [EMAIL PROTECTED] Unsubscribe: [EMAIL PROTECTED] *** FAIR USE NOTICE. This message contains copyrighted material whose use has not been specifically authorized by the copyright owner. OSINT, as a part of The Intelligence Network, is making it available without profit to OSINT YahooGroups members who have expressed a prior interest in receiving the included information in their efforts to advance the understanding of intelligence and law enforcement organizations, their activities, methods, techniques, human rights, civil liberties, social justice and other intelligence related issues, for non-profit research and educational purposes only. We believe that this constitutes a 'fair use' of the copyrighted material as provided for in section 107 of the U.S. Copyright Law. If you wish to use this copyrighted material for purposes of your own that go beyond 'fair use,' you must obtain permission from the copyright owner. For more information go to: http://www.law.cornell.edu/uscode/17/107.shtmlYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/osint/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/osint/join (Yahoo! ID required) <*> To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
