1. Ultrasound
... some energy, but it is a lot less damaging than other penetrating waves - for example, X-rays. The ultrasonic waves can also be used for a variety of medical uses, such as to study and treat hard-to-reach body areas. Uses for ultra sound were first developed in World War II to locate submerged objects; the technique is now widely used in virtually ... every branch of medicine. In obstetrics it is used to study the age, sex, and level of development of the fetus and to determine the presence of birth defects or other potential problems. Its use to determine fetal sex has led ... highly ...
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- Grade Level: High School