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Ultrasonic Echo-Sounding (Sonar)
This video was created by Ian Donald to demonstrate the clinical uses of ultrasound. Ian Donald was a British obstetrician who helped to pioneer the use of ultrasound in a clinical context. Along with Glasgow-born engineer, Tom Brown, the two were able to develop the first clinical ultrasound machine in 1956. This pioneering work was accomplished at the Glasgow Western Infirmary.