tony
Aquarium Advice Apprentice
what are the odds of getting one of these in a LR purchase???
tony
tony
seafan said:BillyZ the Idea of the displacement of water causing the sound is not really feasible, although gas is easily displaced and compressed, water is very difficult to compress. The idea that a shrimp can move fast enough to create a vacuum in an extremely viscous fluid is hard to believe. If this is not what you meant please explain.
P.S If that were true, the displacement caused by a tsunami would sound like thunder, and could be heard miles away.
P.P.S Test it... Take a capped bottle completely filled with water and put it under pressure, or take it into an airplane, and then do the same to one filled with air, see if the one filled with water changes shape.
MT79 said:I have read similar explanations concerning pistol shrimp. It's not sound of the claw snapping together you hear, it the rush of water it creates w/ it's modified claw. Pistols use this high energy sound wave(?) to stun their prey. Hopefully BillyZ can find an article.
These two weapons are employed with blinding quickness, rapidly reaching 10 meters per second from a standing start, and can strike with a force comparable to a small-caliber bullet.
Using a high speed camera with 20 microseconds per frame, the acceleration of the shrimp claw was found to be 55 x 103 m s-2, or 10,000 times greater than that of the Saturn V rocket. The average velocity during strike was 16.7 m s-1