Researchers at the University of Tokyo in Japan have created a special paint which can block out wireless signals. The paint, which could cost as little at £10 per kilogram, contains an aluminium-iron oxide which resonates at the same frequency as wi-fi – or other radio waves – meaning the airborne data is absorbed and blocked. While paints blocking lower frequencies have been available for some time, this new technology is the first to absorb frequencies transmitting as high as 100GHz (gigahertz). Signals carrying a larger amount of data – such as wireless internet – travel at a higher frequency than, for example, FM radio.
The paint has a number of interesting potential applications including: keeping wireless networks secure, blocking phone calls during movies, shielding hospital rooms from unwanted electromagnetic radiation, and making clothes that protect people from electromagnetic waves.
[via BBC News]
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YES FINALLY!!! NO SERVICE FOR ALL THOSE DUMB MoFo’s who insist on keeping thier effing phone on during my movies!!
October 6th, 2009 at 5:17 am
hmmm, although that would be pretty cool to protect your wireless, I think blocking cellphone calls at home would be terribly annoying.
October 6th, 2009 at 6:41 am
Mmm. Thermite paint? I think they need to check this stuff for fire safety!
October 6th, 2009 at 7:02 am
Exactly, isn’t this just as dangerous as lead in paint? Cool concept though.
October 6th, 2009 at 12:22 pm
Pretty awesome. Now hackers will need to add painter remover to their tool-kits to intercept sensitive wifi signals.
October 9th, 2009 at 3:23 am
Nice post…..I was pissed off due someone near my home was trying to hack my notebook with Wi-Fi signals…..Now I can get rid of that shit…..really helpful….
October 9th, 2009 at 9:11 am
I shouldn’t be surprised that Japan have thought of this kind of thing…seems like they think of everything…but I find it funny that they created a “paint” since almost every apartment or house I have ever been into in Japan uses wallpaper…not paint. hmmm.
October 10th, 2009 at 4:40 am
hey is this true? if it is it ll b great bt wt about the windows i mean the painted walls can cut the signals but the windows can pass through the windows isnt it?
does any one know the names of the scientists n the name of their lab
October 12th, 2009 at 8:49 pm