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Palomar

Member

From: USA

Registered: 2002-05-30

Posts: 9,734

Re: Blistering Bubbles

http://www.livescience.com/forcesofnatu … .html]*Wow, this is an interesting article

It's new to me -- anyone else (probably not)?  Rapidly collapsing bubbles have long been known to reach astonishing temperatures??  Hmmmmm.

"When bubbles in a liquid get compressed, the insides get hot – very hot," said Ken Suslick of the University of Illinois at Urbana-Champaign. "The temperature we measured – about 20,000 degrees Kelvin [35,540 Fahrenheit] – is four times hotter than the surface of our Sun."

--Cindy

P.S.:  Found a moment to come back to this.  They say the process of creating plasma in these bubbles "emits light."  And in single bubbles, the light can be seen. 

The light that is seen is coming from the outer surface of the rapidly shrinking bubble.  Inside this surface, the temperature is believed to be even higher.

  Cool. 

---

We all know [i]those[/i] Venusians: Doing their hair in shock waves, smoking electrical coronas, wearing Van Allen belts and resting their tiny elbows on a Geiger counter...

--John Sladek (The New Apocrypha)

SpaceNut

Administrator

From: New Hampshire

Registered: 2004-07-22

Posts: 29,431

Re: Blistering Bubbles

Some experiments with cold fusion using ultra sonic sound to stimulate the water I believe?

SpaceNut

Administrator

From: New Hampshire

Registered: 2004-07-22

Posts: 29,431

Re: Blistering Bubbles

New article: Temperature Inside Collapsing Bubble Four Times That Of Sun

A cinematographic sequence of photos of the growth and implosive collapse of a single bubble (shown in blue) in sulfuric acid irradiated with high intensity ultrasound. The images are shown in false color. Photo by D. Flannigan and K. S. Suslick.