1. Ultrasound
... highly tuned than that of a bats. Shipping The use of ultrasound in the mapping of the sea floor has made it easier to find save passages for shipping. An echo sounder is used to indirectly determine ocean floor depth. Echo sounding is based on the principle that water is an excellent for the transmission of sound waves and that a sound pulse ... ...
- Word Count: 711
- Approx Pages: 3
- Grade Level: High School