Overunity (what is it?)

[MileHigh]

Just to finish off this discussion let's discuss that famous cavitation bubble that produces sonoluminesence.  The amazing pistol shrimp and all that jazz.  There is this belief out there that it's some kind of a source of energy.  Nothing could be further than the truth so let's look at it.

Let's start off with magnets.   You have two magnets stuck together on your bench top.  You pull them apart and place them six inches away from each other.  You may not realize it but you have just put energy into the magnet system.  There is literally a certain tangible amount of energy now in that system that wasn't there before.

You think that's crazy?  Here is a crazy thought experiment:  You spread peanuts still in their shells on your bench.  Then you carefully place neo magnets in among the peanuts so that they stay in place and don't move.  Then you bang the bench top with your fist a few times and all of a sudden *smash*, all of the neo magnets come crashing together.  Some of the peanut shells get busted and liberate the peanuts.

So where did the energy come from to bust the peanut shells open?  The energy came from the positions of the neo magnets on your bench top.  When the neo magnets are on your desktop and spread out that represents a high energy state.  When they all come crashing together, then once the crash is over that represents a low energy state.

Where does the energy come from to create the high energy state, the energy that eventually is used to smash the peanut shells?  It comes from your arm when you pull the neos apart again and place them on the table such that they remain separated from each other.

There is no "energy from the neo magnets" that smashes the peanut shells.  You put energy into the system when you pulled the neo magnets apart (force x displacement = energy).  The energy to smash the peanut shells comes from you, it doesn't come from the magnets at all.

[MileHigh]

So let's look at the cavitation bubble in the same manner.

The cavitation bubble is formed by a strong suction, or negative pressure, on the water.  It takes work (force x displacement) to pull the water apart and actually make the cavitation bubble.

That's just like pulling two magnets apart.  So when you are looking at a cavitation bubble for the brief time it is in existence, the bubble itself represents a higher energy state.  Just the fact that the bubble exists means that there is now more energy in the system.

You can't forget that an outside energy source did the work to create the cavitation bubble.

Then when the cavitation bubble collapses it's just like when the magnets all smash together and break some of the peanut shells.

So, you know that looking at a cavitation bubble means that there is energy stored in the system.

The cavitation bubble collapses ->  the stored energy in the bubble now has just been transformed into kinetic energy of the moving water. ->  This is like all of the moving neo magnets at the instant before they crash together.

The moving water "crashes into itself" when the bubble has completely collapsed ->  This is like imagining all of the moving neo magnets hit each other at the same time.

What happens to the kinetic energy in the moving water when it crashes into itself?  It has to go somewhere.

Certainly some of the energy in the moving water becomes a shockwave that travels through the water.  So some of the kinetic energy becomes sound energy that continues flowing through the water.

Some of the energy simply becomes heat.  But since this heat is all contained within a microscopic volume at the very center of the former bubble, the temperature has to get very high simply to respect the conservation of energy.  The temperature gets so high that some of the heat is radiated away as visible light.  Some of the heat heats the water.  It's all just the conservation of energy in action.

Kinetic energy of the moving water gets transformed into sound energy (shockwave) and heat energy (various wavelengths of EM energy including visible light, and the heating of the water itself)

The entire process of sonoluminescence when a tiny cavitation bubble collapses in on itself is just an ordinary process where energy transforms from one form to another form to another form.   The energy is supplied by an outside source.

So there is no pot of gold associated with sonoluminesence or the pistol shrimp.

[TechStuf]

 

So there is no pot of gold associated with sonoluminesence or the pistol
shrimp.

I'm going to go out on a limb here and take a guess that you didn't choose the user name, "MileHigh" because you live in Denver.

TS

[MileHigh]

TS:

Nice little implicit play on words.... but you are not responding to the points made.

The name just popped into my head.  The first thing I thought of after it popped into my head was Denver.  The second thing I thought about was the airplane scene at the end of the movie Emmanuelle.  Go figure.

MileHigh

[ramset]

Piezo Nuclear reactions ,that's a brand new word for the planet ,maybe they didn't teach this in your school book MH ?{ why would they?]

and its caused By sound ?



The Soundwaves can cause a cascading chain reaction with tempertures easily reaching millions of degrees!

There is definately something to see here
the future of power on Planet earth [once all the "Mongers" lay down]

http://www.youtube.com/watch?v=ba-FeswwGNQ

Thx
Chet