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Ultrasonics, referring to the acoustic sound of frequency over 20 KHz, had its evolution during First World War and became the vibrant topic of public interest only since Second World War. Sonar navigation was the key stimulus to the development of ultasonics. Initially, the motive of ultrasonics was underwater navigation, and also iceberg and submarine detection. But the invention of sandwich transducer by Paul Langevin, known as the father of ultrasonics, played a vital role in the emergence of ultrasonics as a subject and this led to numerous technical improvements and commercial applications ranging from the study of internal-structure and inherent properties of crystals, advanced materials, surface microscopy, ultrasonic imaging or sonography and optical data processing to various medical and industrial applications. Non-destructive technique of ultrasonics occupies great importance in material characterization and requires two main parameters- ultrasonic velocity and attenuation. And also, ultrasonics seems to fulfill all future expectations and to resolve various future issues. Various applications of low intensity-high frequency and high intensity-low frequency ultrasonics in neighboring disciplines have led to the emergence of the new era of science. In the present paper, investigator has proposed a historical view of ultrasonics as well as current utilization in a very innovatory way. Investigator has also explored very fruitful applications for future research.
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