Is this for real??

[mudskippers]

I was just messing around on Youtube, and I came accross this video...
Is this for real? Does this really occur?
About 2 years ago my boyfriend had a 10gal sw reef with a yellow watchmen goby paird up with a pistol shrimp, and then had gotten one of these cleaner shirmp and he magically disappeared... Is this what happend to him?


http://www.youtube.com/watch?v=eKPrGxB1Kzc&mode=related&search=

[jtburf]

they create a bublle and pop it really fast sending a focused concusion blast towards whatever.

[ooja3k]

thats insane...

[da jig iz up]

that's probably one of the craziest things i've seen in a while

[clown-lover]

Very cool.. Thanks for the link

[Riverserver]

No, false, wrong wrong wrong. Just some silly video filmed in some guys living room with scenes from the titanic exploration spliced in.

What's happening is actually cavitation, and the mantis shrimp can do it too, and are far superior biologically. What happens when somethings moves too fast through the water is that it vaporises the water. It creates a tiny pocket of air under the water that collapses upon itself and that's what creates a shock wave.

And at NO point does it reach the temperature of the sun. What it really is a light wave length of 10,000K. And we ALL know, that we are not actual temperature here.

[Max]

That's right river and dolphins and whales can also have a quite powerfull sonic attack. It doesn't equate to temps though it's just a presure wave from displacement. Mantis shrimp can break glass "bashers not spearers" this is pretty entertaining so I'm going to move it to general chit chat so more people can enjoy it.
good find
Max

[wataugachicken]

http://en.wikipedia.org/wiki/Pistol_shrimp


The snap can also produce sonoluminescence from a collapsing bubble, also known as a cavitation bubble. As it collapses, the cavitation bubble reaches the surface temperature of the Sun [10]. The light is of lower intensity than the light produced by typical sonoluminescence and is not visible to the naked eye. It is most likely a by-product of the shock wave with no biological significance. However, it is the first known instance of an animal producing light by this effect.



http://news.nationalgeographic.com/news/2001/10/1003_SnappingShrimp.html


Now, using a device that counts photons, Lohse and his colleagues recorded a flash of light that occurs when the bubble collapses.

The flashing phenomenon is thought to be similar to sonoluminescence, in which bubbles that are in a liquid driven by a strong sound field emit light. The researchers have dubbed the shrimp activity shrimpoluminescence.

In sonoluminescence, the peak intensity of the emitted light is at a short wavelength. This indicates that the temperature inside the bubble is at least 10,000 degrees Kelvin (18,000 degrees Fahrenheit).


Looks like it's true. . .

[Riverserver]

Wow! I had no idea my compact florescents were really the temperature of the sun! Man, you people with 20,000K metal halides need to be careful!

[Dangerdoll]

that was pretty amazing!! I would be dangerous as a shrimp, hehehe

[mudskippers]

First off, thanks everyone for taking the time to view the video :)

All of this info is extreamly interesting!

My boyfriend is setting up another sw reef tank and he wanted to make the same pair that he had last time. Now knowing that thease shrimp can "attack" should I be cautious of any certain tank mates for him? Just stay away from other shrimp??

Thanks again for viewing this link ;)

[wataugachicken]

Wow! I had no idea my compact florescents were really the temperature of the sun! Man, you people with 20,000K metal halides need to be careful!


Of course they are not the temperature of the sun, and there is no need to be so sarcastic. However, they mimic the light of the sun at that specific temperature. Maybe you should do a little research on temperature Kelvins, used like Celcius and Fahrenheit, as compared to kelvins used to measure color-temperature.

[mozart]

Very cool video! It actually does reach the temperature of the sun.
www.livescience.com/environment/050303_hot_bubbles.html (http://www.livescience.com/environment/050303_hot_bubbles.html)
Note the paragraph stating that "the heating is so brief and localized that it cannot be measured with a thermometer".

You don't need to learn Kelvin!

[ooja3k]

it is true that it reaches that hot..

learned about that in my college physics class..

[125gJoe]

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http://news.nationalgeographic.com/news/2001/10/1003_SnappingShrimp.html

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