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Daily Object Photo: Ultrasound Room |
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| Free Photo Tags: ultrasound machine, ultrasound room, hospital device, hospital equipment, hospital bed, medical device, stock photos, free foto, free photos, free images download, stock photography, stock images, royalty-free image, school project use |
| Photo Sizes Medium: 586 X 440 pixels, 72 dpi. Large: 2272 X 1704 pixels, 72 dpi. |
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UltrasoundUltrasound is cyclic sound pressure with a frequency greater than the upper limit of human hearing. Ultrasound is thus not separated from "normal" (audible) sound based on differences in physical properties, only the fact that humans cannot hear it. Although this limit varies from person to person, it is approximately 20 kilohertz (20,000 hertz) in healthy, young adults. The production of ultrasound is used in many different fields, typically to penetrate a medium and measure the reflection signature or supply focused energy. The reflection signature can reveal details about the inner structure of the medium, a property also used by animals such as bats for hunting. The most well known application of ultrasound is its use in sonography to produce pictures of fetuses in the human womb. There are a vast number of other applications as well. (Source: Wikipedia.org)
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