By combining ultrasound with a concept called nonlinear acoustics, you can create sound that stays silent until it reaches a ...

We can’t hear all levels of sounds. Sound waves with very high frequencies are called ultrasound and our ears can’t detect them. Ultrasound waves have multiple uses including: detecting ...

“Metasurfaces are engineered materials that manipulate wave behaviour in ways that natural materials cannot,” said Zhong. “In ...

Sound waves propagating through the intracluster ... it have been transposed up 57 and 58 octaves so they're audible to human ...

Only when they reach their destination are the sound waves picked up by human ears. "We essentially created a virtual headset," said lead author Jiaxin Zhong, an acoustics researcher at Penn State, in ...

This class focuses on the role of waves in human body systems through student-directed inquiry using modern medical technologies and explorations of the fundamental science behind sound waves and ...

Ultrasound refers to sound waves with frequencies above the range of human hearing, or 20 kHz. These waves travel through the air like normal sound waves but are inaudible to people. Because ...

These cyclical ripples, also called cymatics, travel far faster than human eyes can see ... he can produce a diverse array of patterns as sound waves bounce off the sides of the dish, repeatedly ...

My research group has just published a paper demonstrating how underwater sound waves can be used to make surface waves more powerful, potentially making them a more viable source of energy.