Acoustic metamaterial silences sound without blocking airflow

A snapshot of a sound wave colliding with a barrier made of acoustic metamaterial showing the wave being split and dispersed into multiple pathways by the materials unique

Isotropic transformation acoustics and applications

Developing new materials that can block 94% of sound with 3D printers, can be applied to realize silent drones and measures against noise pollution

Adaptive GRIN lens based on piezoelectric metamaterial for acoustic beam focusing

zorancodes on Instagram: "Scientists Built a Programmable Metamaterial With More States Than the Universe 🤯 Scientists at the University of Connecticut have built the world’s most advanced programmable acoustic metamaterial — a shape-shifting grid of pillars that can be individually rotated to create astronomically large numbers of configurations. This material can transform instantly, letting engineers control sound waves, vibrations, ultrasound, and energy propagation with extreme precision.