It can be specifically useful in the robotics and manufacturing industries.
It has been shown in previous studies that objects can be manipulated with light and sound waves, too. But the objects in question were always far smaller than the wavelengths of either light or sound or on the order of millimeters to nanometers.Based on the principles of metamaterial physics, the new method is significant for being able to move bigger objects.
"When we place these tiny patterns on the surface of the objects, we can basically reflect the sound in any direction we want. And in doing that, we can control the acoustic force that is exerted on an object."The technique not only enabled the researchers to move an object forward, but also pull it in the direction of a source. This could be especially useful in manufacturing or robotics industries.
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