The Open Directory Project.

Directory of Ultrasound Resources

Home > Science > Technology > Acoustics, Ultrasound and Vibration > Ultrasound

Ultrasound is cyclic sound pressure with a frequency of 20 kilohertz or over, greater than the upper limit of human hearing.

Subcategories

Resources in This Category

Related Categories

 

Home > Science > Technology > Acoustics, Ultrasound and Vibration > Ultrasound

 


 

Thanks to DMOZ, which built a great web directory for nearly two decades and freely shared it with the web. About us