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How To Cloak Objects At a Distance

KentuckyFC writes "All invisibility cloaks to date work by hiding an object embedded inside them. Now a group of physicists have worked out how to remotely cloak objects that sit outside a cloaking material. The trick is to make the cloaking material with optical properties that are exactly complementary to the space outside them. Complementary means that the material reverses the effect the space has on a plane wave of light passing through it. To an observer this space would appear to vanish. The scientists say that to cloak an object sitting outside the cloaking material, first measure its optical properties and then embed a "complementary image" of the object within the cloak. So a plane wave is first distorted by the object but then restored to a plane by the complementary image of the object within the cloak (abstract).

Outside the Frame: Documenting Election '08

Freelance writer Amanda Hirsch, former editorial director of PBS Interactive, blogs about documentaries and the web in her column, Outside the Frame, published every other Wednesday.

Yahoo lets outside developers play with its software (AFP)

has followed through on a promise to give outside developers access to its software in order to jazz-up the website with fun, hip or functional programmes.

Yahoo lets outside developers play with its software

Yahoo has followed through on a promise to give outside developers access to its software in order to jazz-up the website with fun, hip or functional programmes. Skip related content

Yahoo lets outside developers play with its software

SAN FRANCISCO: Yahoo has followed through on a promise to give outside developers access to its software in order to jazz-up the website with fun, hip or functional programmes.

Yahoo lets outside developers play with its software

SAN FRANCISCO: Yahoo on Tuesday followed through on a promise to give outside developers access to its software in order to jazz-up the website with fun, hip or functional programs.

Yahoo lets outside developers play with its software

SAN FRANCISCO (AFP) - Yahoo has followed through on a promise to give outside developers access to its software in order to jazz-up the website with fun, hip or functional programmes.

Yahoo lets outside developers play with its software

SAN FRANCISCO: Yahoo on Tuesday followed through on a promise to give outside developers access to its software in order to jazz-up the website with fun, hip or functional programs. Early this year, the pioneering Internet firm outlined a shift to an "Open Strategy" that it believes will invigorate Yahoo and lead to meshing offerings from hot online properties such as Amazon and iTunes with its web pages.

Yahoo lets outside developers play with its software

SAN FRANCISCO (AFP) - - Yahoo has followed through on a promise to give outside developers access to its software in order to jazz-up the website with fun, hip or functional programmes.

Yahoo lets outside developers play with its software (AFP)

People use computer terminals in Mumbai, India. Internet giant Yahoo has followed through on a promise to give outside developers access to its software in order to jazz-up online services.

New Learning Outside The Classroom Quality Badge Launched

Teachers concerned about the quality and safety of children’s school trips will find them easier to organise with the launch of a new Quality Badge for providers of the government-backed Learning Outside the Classroom initiative.

Suspicious package found outside Bank of Canada

OTTAWA (Reuters) - Police are investigating a suspicious package found outside the Bank of Canada headquarters in Ottawa on Thursday, bank spokesman Jeremy Harrison said.

Astronauts finish second spacewalk outside station

HOUSTON (Reuters) - Shuttle Endeavour astronauts working outside the orbiting International Space Station faced glitches during a second spacewalk on Thursday, as one astronaut experienced high carbon-dioxide levels after his crew mate lost a tool bag on the mission's first spacewalk.

Google set to push deal outside US

Google is to "actively work" with publishers outside the United States to implement a deal, similar to the provisional agreement signed with US publishers, enabling web users to browse and buy millions of titles online.

Astronauts Finish Longest Spacewalk Outside Station

Two shuttle Endeavour astronauts finished the longest of their planned spacewalks outside the orbiting International Space Station on Saturday, a nearly seven-hour effort aimed at cleaning and repairing a contaminated joint on the station's solar power array.

First pics taken of planets outside our solar system

(CNN) -- The first-ever pictures of planets outside the solar system have been released in two studies.

Astronauts finish longest spacewalk outside station (Reuters)

HOUSTON (Reuters) - Two shuttle Endeavour astronauts finished the longest of their planned spacewalks outside the orbiting International Space Station on Saturday, a nearly seven-hour effort aimed at cleaning and repairing a contaminated joint on the station's solar power array.

Astronauts Finish Longest Spacewalk Outside Station

HOUSTON (Reuters) - Two shuttle Endeavour astronauts finished the longest of their planned spacewalks outside the orbiting International Space Station on Saturday, a nearly seven-hour effort aimed at cleaning and repairing a contaminated joint on the station's solar power array.

Astronauts finish longest spacewalk outside station

HOUSTON (Reuters) - Two shuttle Endeavour astronauts finished the longest of their planned spacewalks outside the orbiting International Space Station on Saturday, a nearly seven-hour effort aimed at cleaning and repairing a contaminated joint on the station's solar power array.

Astronauts finish longest spacewalk outside station

HOUSTON (Reuters) - Two shuttle Endeavour astronauts finished the longest of their planned spacewalks outside the orbiting International Space Station on Saturday, a nearly seven-hour effort aimed at cleaning and repairing a contaminated joint on the station's solar power array.

Astronauts finish longest spacewalk outside station

HOUSTON (Reuters) - Two shuttle Endeavour astronauts finished the longest of their planned spacewalks outside the orbiting International Space Station on Saturday, a nearly seven-hour effort aimed at cleaning and repairing a contaminated joint on the station's solar power array.

Astronauts finish longest spacewalk outside station

HOUSTON (Reuters) - Two shuttle Endeavour astronauts finished the longest of their planned spacewalks outside the orbiting International Space Station on Saturday, a nearly seven-hour effort aimed at cleaning and repairing a contaminated joint on the station's solar power array.

Astronauts finish longest spacewalk outside station

HOUSTON (Reuters) - Two shuttle Endeavour astronauts finished the longest of their planned spacewalks outside the orbiting International Space Station on Saturday, a nearly seven-hour effort aimed at cleaning and repairing a contaminated joint on the station's solar power array.

Astronauts finish longest spacewalk outside station

HOUSTON (Reuters) - Two shuttle Endeavour astronauts finished the longest of their planned spacewalks outside the orbiting International Space Station on Saturday, a nearly seven-hour effort aimed at cleaning and repairing a contaminated joint on the station's solar power array.

First pictures of planet outside solar system

Astronomers have succeeded in taking the first visible light snapshot of a planet outside our home solar system.

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