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According to the principle of diffraction, when a wave front passes an obstruction, it spreads out into the shadowed space. A creeping wave in electromagnetism or acoustics is the wave that is diffracted radially around the surface of a smooth body such as a sphere.
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wave creeping waves diffraction electromagnetism acoustics sphere propagation wavelength sound radar according principle front passes obstruction spreads shadowed space diffracted
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| a sphere.Creeping waves greatly extend the ground wave propagation of long wavelength | instance of | A creeping wave in electromagnetism or acoustics is the wave that is diffracted radially around the surface of a smooth body | 0.80 | text |
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