Guiding sound waves through a maze

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(Vienna University of Technology) Researchers at TU Wien are developing methods for manipulating waves in a targeted manner, so that they can move forward with almost no restriction. This method has now been implemented in an experiment. Using precisely controlled loudspeakers, it has been possible to send a sound wave through a tube containing various obstacles. Technologies like this could enable light waves to be manipulated and objects to be made invisible.

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