This new metamaterial responds to acoustic waves, letting researchers rotate and move objects with precision underwater.

Save guides, add subjects and pick up where you left off with your BBC account. A sound wave is a vibration that travels through a solid, liquid or gas such as the air or water. A loud sound has a ...

A newly developed metamaterial enables sound waves to manipulate objects underwater without any need for physical contact.

Central to physics are ideas such as energy, mass, particles and waves. Physics attempts to both answer philosophical questions about the nature of the universe and provide solutions to ...

Abstract: Emerging surface haptic technologies exploit wave physics to create software-programmable two-dimensional haptic displays. However, designing such systems is challenging due to the complex ...

Abstract: This paper focuses on acoustic noise reduction by the injection of the third and ninth harmonics into the zero-sequence current in surface permanent motors. In the proposed method, the sixth ...

Keyword: detection Title: Revisiting Adversarial Perception Attacks and Defense Methods on Autonomous Driving Systems Authors: Cheng Chen, Yuhong Wang, Nafis S Munir, Xiangwei Zhou, Xugui Zhou Subj ...