BU researchers develop 'acoustic metamaterial' that cancels sound

(Boston University) Boston University researchers, Xin Zhang, a professor at the College of Engineering, and Ghaffarivardavagh, a Ph.D. student in the Department of Mechanical Engineering, released a paper in Physical Review demonstrating it's possible to silence noise using an open, ringlike structure, created to mathematically perfect specifications, for cutting out sounds while maintaining airflow.
Source: EurekAlert! - Biology - Category: Biology Source Type: news