Here are five creatures with superior hearing abilities that can detect and interpret ultrasonic frequencies: Dogs can hear ...

But a hackier way would be to build a parametric speaker that focuses soundwaves into a narrow beam like [Shane] did with this ultrasonic sound gun. As the directivity of a soundwave depends on ...

At the recent Hacker Hotel conference in the Netherlands, she presented an ultrasonic parametric speaker. It projects an extremely narrow beam of sound over a significant distance, but it’s not ...

Researchers have developed a new technique to make glass water-repellent, a feature that could improve safety in vehicles, reduce cleaning costs for buildings and enhance filtration systems. The ...

Researchers have developed a new technique to make glass water-repellent, a feature that could improve safety in vehicles, ...

Ultrasonic sound makes waves that vibrate so quickly that only animals with especially sensitive hearing can pick them up. Mice and rats communicate with each other using ultrasound. These baby ...

Curtin University researchers have developed a new technique to make glass water-repellent, a feature that could improve safety in vehicles, reduce cleaning costs for buildings and enhance filtration ...