University of Tokyo, Japan researchers have developed a paint that obstructs wifi signals by adding aluminum-iron oxide particles that resonate at the same frequency as wifi signals, around 2.4 Gigaherz. The paint can block signals at up to 100 GHz. Painting the outside of your house will seal it against neighbours who use your wifi. Theatres and concert halls are interested in the technology to block cellphone signals during performances. BBC,Yahoo News
Posted by Sean Ecker on 5 October 2009 at 9:50 |
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This work by genevalunch.com is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported.
News story, GenevaLunch, 5 October 2009.
Filed under: World news
Tags: aluminium-iron oxide, cell phones, gigaherz, paint, Unversity of Tokyo Japan, wifi signals
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