Ultrasonics

Ultrasound has been used to investigate the physical properties of materials, to determine the molecular weights of liquid polymers, to investigate the associated states of water, and to induce and speed up chemical reactions. Ultrasound has also been used to break up high molecular weight polymers, thereby making possible the creation of new plastic materials. Agricultural research indicates that seeds have been found to germinate more rapidly and to give higher yields after they have been subjected to ultrasound.