These effects are particularly important where sound is propagating ... can be severely reduced by temperature and wind gradients. Diffraction of a low frequency sound wave around a barrier. Note that ...

The frequency of ultrasound is therefore greater than 20,000 hertz. Ultrasound, like audible sounds, is transmitted by means of longitudinal waves. Ultrasound is used in medicine to break up ...

A fibrous composite foam employs the triboelectric effect and in situ electrical energy dissipation to absorb low-frequency ...

For the first time, scientists have confirmed a 50-year-old theory about wave amplification using electromagnetic waves.

Billionaire Brain Wave is a theta-based sound frequency that is said to target the hippocampus and help people attract ...

The effects of the binaural beat will depend on its frequency and the corresponding brain wave: Beta waves (13-16 Hz) occur when we are awake and alert. Alpha waves (8-12 Hz) happen when we are ...

It can generate up to three independent square-wave ... recreate a sound [InazumaDenki] begins by analyzing a recording with a spectrogram, which is a visual representation of frequency changes ...