New research offering bendable sound waves that can reach only one set of ears could be the next tech revolution.

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

Improve Laboratory Efficiency with Our Ultrasonic Bath Sonicator for Precise Cleaning Efficiency and precision are two ...

Ultrasonic sounds are high-frequency sound waves that exceed 20,000 hertz, making them too high-pitched for human ears to detect. These sound waves vibrate more than 20,000 times per second. Doctors ...

Ultrasonic beams fired through a 3D-printed metasurface can create localized pockets of sound that are inaudible to ...

“The person standing at that point can hear sound, while anyone standing nearby would not. This creates a privacy barrier between people for private listening.” The system works by sending out two ...

When the beams intersect, a phenomenon known as difference frequency generation occurs, creating an audible sound. "When two ultrasonic beams of slightly different frequencies, such as 40 kHz and ...

Tinged with a glorious nostalgia from the turn of the millennium, Devil Ultrasonic Dream taps into the magic of sulky, ...

Q. I recently left my Toyota lights on, and the car would not start. My neighbor used a jumper box to get the car going.

Using intersecting ultrasonic beams, the innovation creates tightly focused zones where only the intended listener can hear ...

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