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secondary wave |
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secondary wave [′sek·ən‚der·ē ′wāv] (geophysics) (optics) One of the waves that radiate from each point on a wavefront, according to Huygens' principle. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| These waves arrive at seismic stations before secondary waves, or S-waves, which shake molecules from side to side. Based on the scientific principles of earthquakes, The Tsunami EarthQuake Alarm is designed to detect the non-destructive primary waves of an earthquake that are not felt and which precede the potentially destructive secondary waves. In contrast, the X-ray glow from the elements stems from heating by a reverse shock wave -- the secondary wave of energy created whent he original, outgoing blast slams into interstellar space. |
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