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Wednesday, April 7, 2010

How animal responding to P and S-wave

See this video. Anyone could conclude that animal can respond to P and S wave, which it not detectable to human because of its speed (P wave travels at 14 km/s in water, 300m/s in air and 50km/s in granite, and S wave at 60% of P wave). Some seconds later the main shock is perceived.

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