WEST LAFAYETTE, Ind. — A solid can serve as a medium for heat and sound wave interactions just like a fluid does for thermoacoustic engines and refrigerators – resulting in leak-free machines that can ...

Sound waves passing through the air, objects that break a body of water and cause ripples, or shockwaves from earthquakes all are considered "elastic" waves. These waves travel at the surface or ...

Researchers have found a way to make materials that are normally opaque to sound waves completely transparent. Their system involves placing acoustic relays at strategic locations so that sound waves ...

Editor’s note: This article was originally published by Power Engineering International. Engineers at Australia’s RMIT University have demonstrated the potential of sound waves to boost green hydrogen ...

Sound waves could be the next big thing in fire-fighting technology. George Mason University engineering students Seth Robertson and Viet Tran have built a new kind of fire extinguisher that uses ...