The process is very similar to ultrasound imaging. However, the sound waves used are within normal hearing range, and they are used to identify objects rather than internal structures. This ...

We can’t hear all levels of sounds. Sound waves with very high frequencies are called ultrasound and our ears can’t detect them. Ultrasound waves have multiple uses including: detecting ...

Nearly two-thirds (65%) of respondents say they like to watch Facebook videos with the sound on. However, men and women have significantly different sound preferences: Some 70% of men surveyed say ...