| 11. | The compression wave and therefore the air molecules move at exactly the speed of sound in the medium.
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| 12. | This system should not be confused, however, with the propagation of sound as compression waves in liquid.
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| 13. | A wide variety of compression waves are created, but only some ( primarily the odd harmonics ) are reinforced.
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| 14. | The only explanation for fast emission propagation is the dual of the active traveling wave, the active compression wave.
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| 15. | Active compression waves were proposed as early as 1980 by P . J . Wilson due to older experimental data.
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| 16. | P-wave refraction evaluates the compression wave generated by the seismic source located at a known distance from the array.
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| 17. | When the deflagration begins, a zone of significantly elevated pressure travels outward through both air masses as a compression wave.
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| 18. | :: Sound waves are compression waves, they move through the air by quickly compressing and decompressing the surrounding molecules.
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| 19. | These different waves ( compression waves and the different polarizations of shear waves ) may have different speeds at the same frequency.
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| 20. | A compression wave comes from tiny pieces of the medium conducting it along, smashing into the next piece, and so on.
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