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Title: Ultrasound

Essay Details:

Subject: Technology
Author: Matthew D
Date: August 28, 2016
Level: University
Grade: A
Length: 3 / 844

Essay text:

Musical instruments work by building up regular vibrations like in the case of strings, skins, tubes of air which results in the surrounding air vibrating with the same pattern causing melodious music. Usually sound is absorbed by various objects. However, in some cases, it is reflected which more commonly called as echo. When sound strikes soft materials, it is absorbed. Such materials that absorb most of the energy of sound waves are called sound insulators. This property of the sound is beneficial to geologists to locate oil reservoirs. It also helps in tracking earthquakes and to find out how earthquakes travel through different kinds of rocks and magma...

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