Philosophy Wire by Spiros Kakos [2013-04-02]: A simple plastic shell has cloaked a three-dimensional object from sound waves for the first time. With some improvements, a similar cloak could eventually be used to reduce noise pollution and to allow ships and submarines to evade enemy detection. The experiments appear March 20 in Physical Review Letters. [source: Science News]Taking into account the simple fact that human efforts in technology are usually aeons behind Nature's progress in the same things, I just wander how many things are cloaked from us as we speak...
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