Special paint blocks Wi-fi signal


If you don’t like the fact that your neighbors are abusing your wireless connection now you have the solution : a special paint that will not let your wireless signal to pass thru it. So all you need to do now is to paint the walls of your house with this paint for total protection. The secret lays in the paint composition (a mixture of aluminum-iron oxide particles). The metal particles resonate at the same frequency as Wi-Fi signal, so signals can’t pass through the thin layer of pigment. The ones outside your house would simply be unable to access your network, just as you, in the inside won’t be able to interlope on anything beamed on the outside.
The paint was developed by the University of Tokyo and the first that can block radio frequency in higher spectra where Wi-Fi and other higher-bandwidth communications occur rather than just low-frequency wireless like FM radio.

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