Cheap Paint Blocks Higher Wireless Frequencies!

[gunug]

Awhile back I think that I posted about paint that blocks wireless communications but apparently that sort of paint that they've been using won't block the new higher frequencies that are starting to be used:

QUOTE

The ability to block electromagnetic (EM) waves comes about when a material's magnetic field resonates at the same frequency as the wave. Wave absorbers are usually made from iron-rich oxides, but higher-frequency transmissions outstrip the power of iron to absorb electromagnetic waves.

However, the standard oxide coating – which contains barium as well as iron – has a maximum resonance frequency that is outstripped at 48 GHz.

Shin-ichi Ohkoshi's team at the University of Tokyo in Japan has just identified a new aluminium-iron oxide able to block waves with a frequency almost four times higher.

The team used a sensitive magnetometer to confirm that a powder of the new oxide can absorb EM waves of up to 182 GHz at room temperature.

http://www.newscientist.com/article/dn1644...t-wireless.html

I'm thinking that this will be more and more of a problem as time goes on!

[Xairbusdriver]

I wonder if it comes in Matte Clear?! I can see government paint trucks rolling down streets, painting houses of known drug dealers. It'll make those people come outside where they can be more easily identified! And arrested!