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ScienceDaily kirjoittaa:
Voisin kuvitella, että tuollainen materiaali ja kuvio voisi olla sukellusveneisiin ja torpedoihin jne. erittäin tervetullut.Led by mechanical science and engineering professor Nicholas Fang, Illinois researchers have demonstrated an acoustic cloak, a technology that renders underwater objects invisible to sonar and other ultrasound waves.
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"We are not talking about science fiction. We are talking about controlling sound waves by bending and twisting them in a designer space,"
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The researchers tested their cloak's ability to hide a steel cylinder. They submerged the cylinder in a tank with an ultrasound source on one side and a sensor array on the other, then placed the cylinder inside the cloak and watched it disappear from their sonar.