The findings, which appear in PRX Life, offer fresh insight into the remarkable capacity and accuracy of human hearing ... and more than a trillion-fold range in power, down to tiny vibrations ...

The sound waves were extracted along the radius of the galaxy, outwards from its centre, and were transformed into the range of human hearing by scaling them upward by 57 and 58 octaves above ...

The human ear can tolerate noise up to 85 decibels without damage. Anything louder poses a risk of permanent hearing loss. Yet, studies show that anything at or above 65 decibels can trigger an ...

Ultrasound is produced by high frequency vibrations beyond the range of human hearing. The frequency of ultrasound is therefore greater than 20,000 hertz. Ultrasound, like audible sounds ...

waves have a frequency higher than the upper limit for human hearing - above 20,000 ... However, the sound waves used are within normal hearing range, and they are used to identify objects rather ...