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Latest John Pendry Stories

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2011-03-02 13:26:47

With NSF support, Elena Semouchkina and colleagues are experimenting with ways of using magnetic resonance to capture rays of visible light and route them around objects, rendering those objects invisible to the human eye By Marlene Cimons, National Science Foundation In 1897, H.G. Wells created a fictional scientist who became invisible by changing his refractive index to that of air, so that his body could not absorb or reflect light. More recently, Harry Potter disappeared from sight after...

2009-09-29 13:06:40

Since 2000, John Pendry's work on metamaterials has been at the van guard of efforts to create a perfect image "“ images with perfect resolution that can stem from light being moved in odd directions to create, among other tricks of the light, the illusion of invisibility. One exciting development was Pendry's theoretically perfect work on negative refraction, which offered the possibility of lenses that could create images with resolution not possible with conventional lenses. But this...

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2009-04-30 11:00:54

Two teams of scientists have developed a cloak that renders objects invisible to near-infrared light, BBC News reported. The new technology, however, does not contain metals unlike previous such "cloaks" that resulted in imperfect cloaking because of losses of light. Researchers say that since the approach can be scaled down further in size, the new technology is a major step towards a cloak that would work for visible light. John Pendry from Imperial College London first theorized a cloak...

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2008-08-11 09:05:00

Two recently designed 3-D materials are opening new possibilities for scientists looking to develop an invisibility cloak. The so-called metamaterials are artificially engineered structures that have properties not seen in nature. The materials were developed by two separate teams under the direction of Xiang Zhang of Nanoscale Science and Engineering Center at the University of California, Berkeley with U.S. government funding. These metamaterials work to bend light in the wrong direction....

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2008-06-16 12:15:00

Scientists believe they have developed plans for new technology that could make sound proof homes a reality. Reported in the New Journal of Physics, the blueprints for an "acoustic cloak" could make objects impervious to sound waves. "The mathematics behind cloaking has been known for several years," said Professor John Pendry of Imperial College London, UK, an expert in cloaking."What hasn't been available for sound is the sort of materials you need to build a cloak out of."Scientists had...

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2008-02-29 12:05:00

Naval warships might look like all-powerful vessels but they are also highly vulnerable to being spotted by the enemy. That fear of being detected has led the military to develop new stealth technologies that allow ships to be virtually invisible to the human eye, to dodge roaming radars, put heat-seeking missiles off the scent, disguise their own sound vibrations and even reduce the way they distort the Earth's magnetic field, as senior lecture in remote sensing and sensors technology at...


Word of the Day
tessitura
  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
This word is Italian in origin and comes from the Latin 'textura,' web, structure.