Using an air vortex cannon to focus the sound waves from the bass reflex port, it ‘wiggles’ the flame out in a matter of seconds, as illustrated with a thermal camera. Compared to the much ...

Scientists have created a device that works like that, ensuring sound waves ripple in one direction only. The device, ...

Researchers at ETH Zurich have managed to make sound waves travel only in one direction. In the future, this method could ...

Ultrasound is already used for diagnosis and therapy. Recent studies have found it also to be a safe, effective, and rapid ...

If you buy through a BGR link, we may earn an affiliate commission, helping support our expert product labs. Scientists at ETH Zurich and the Swiss Federal Institute of Technology Lausanne have ...

A sound wave is a vibration that travels through a solid, liquid or gas such as the air or water. A loud sound has a large amplitude, a high pitched sound has a high frequency. Musicians and ...

A bladder ultrasound gives providers clues about how the bladder expands and holds urine. This article lists conditions ...

In context: Sound waves typically propagate in forward and backward directions. This natural movement is problematic in some situations where unwanted reflections cause interference or reduced ...

The cooler, drier air of autumn is denser than warm and humid air, providing a more efficient medium for sound waves to ...

When someone speaks, sound waves hit the eardrums, vibrating and sending signals to the brain. But unlike the clarity the eyes offer, ears can struggle in noisy environments, where many different ...

The multinational—and several other defense giants—lost to four college students who knocked drones out of the sky using sound waves. The rookies’ device was developed in the backyard of one ...