Citat:"Three-dimensional broadband omnidirectional acoustic ground cloak"
"we demonstrate the design and experimental characterization of an almost perfect three-dimensional, broadband, and, most importantly, omnidirectional acoustic device that renders a region of space three wavelengths in diameter invisible to sound."
Länk till källan: http://www.nature.com/nmat/journal/v13/ ... t3901.html
Vad tror ni, något att kika närmare på, eller arrogant avfärda?
MVH/isaac.
