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 ...

This means that, unlike many materials, it operates as a guide for the high-frequency sound waves and lets them more freely ...

For homeowners worried about snakes invading their property, ultrasonic snake repellents seem like an easy and harmless ...

They sent a sound wave with a frequency of around 800 Hertz (roughly the high g of a soprano) through the first waveguide and ...

A pioneering clinical trial is testing whether focusing high-frequency sound waves onto the surface of bone where cancer has spread can burn away the source of pain. The cutting-edge technique focuses ...

A barrier should be at least high enough to obscure the 'line of sight' between ... be severely reduced by temperature and wind gradients. Diffraction of a low frequency sound wave around a barrier.

Sound vibrations leave the singer's ... Carrier Wave Generator The Wave Generator creates a high-frequency radio signal. The frequency of this signal is many times greater than the frequency ...

The approach uses high-frequency sound waves, usually in the megahertz (radiofrequency) range, to periodically modify the refractive index of a crystal through which a laser beam propagates.

Ultrasonic transducers send and receive waves for many types of sensing. They convert energy into high frequency sound waves in the ultrasonic range. These sound waves are then focused on a target and ...