41. Sonoluminescence - Creation Of Light From Sound sonoluminescence. Single Bubble sonoluminescence (SBSL) is the emission of flashes of light by imploding air bubbles in liquid. It was first observed as random flashes http://www.chm.bris.ac.uk/webprojects2004/eaimkhong/sonoluminescence.htm

S o n o chemistry Sounds into Reaction Home Introduction Theory Application ... Contact Applications of Sonochemistry(SC) Sonoluminescence Single Bubble Sonoluminescence (SBSL) is the emission of flashes of light by imploding air bubbles in liquid. It was first observed as random flashes of light during studies of cavitation. Recently, repetitive emission of SL has been produced under relatively stable, reproducible experimental conditions. The excellent stability of SL from single acoustically levitated bubbles has made possible detailed studies of the emission characteristics[2]. However, since each flash emits only about one million photons, these measurements have generally required averaging the characteristics over a large number of flashes. Fig6 - apparatus for single bubble sonoluminescence. The ultrasound is applied across the rounded bottom flask and hence bubble is created. Other applications Sonoluminescence Sonofusion Chemoluminescence Sonocrystalisation ... Sonocatalyst In single bubble sonoluminescence, the bubble is concentrating the energy of the acoustic vibrations be a factor of one trillion. The flashes are so brief that to measure the properties of light , we must use photodetectors that respond more quickly than those employed by high-energy physicists. And this is the only means of generating picosecond flashes of light that does not require expensive lasers, which might lead to development of nuclear fusion due to its achievement in focusing of energy.

42. Sonoluminescence -- From Eric Weisstein's World Of Physics The production of a flash of light accompanying the bursting of a bubble. The phenomenon occurs with very small bubbles under high pressure and is not well understood. See also http://scienceworld.wolfram.com/physics/Sonoluminescence.html

Fluid Mechanics Bubbles and Cavitation Sonoluminescence The production of a flash of light accompanying the bursting of a bubble. The phenomenon occurs with very small bubbles under high pressure and is not well understood. Bubble Cavitation Crum, L. A. "Sonoluminescence." Physics Today, Sept. 1994, pp. 22-29. Crum, L. A. and Roy, R. A. "Sonoluminescence." Science Hiller, R. et al. "Effect of Noble Gas Doping in Singe-Bubble Sonoluminescence." Science van Warren, L. "The Virtual Sonoluminescence Symposium." http://www.wdv.com/Notebook/Sono/

43. Sonoluminescence Light from sound. Wait what? http://www.planet-scicast.com/view_clip.cfm?cit_id=2932

44. Sonoluminescence, Page 1 the folowing video is a star in a jar and is thought to be as hot on its suface as the sun and is created by sound and a desturbance or bubble in a liquid http://www.abovetopsecret.com/forum/thread606485/pg1

getTrigger('4373'); HOME TOP TOPICS NEW TOPICS ABOUT ... LOG IN sonoluminescence, page 1 Pages: ATS Members have flagged this thread times Topic started on @ 06:01 AM by XPLodER the folowing video is a star in a jar and is thought to be as hot on its suface as the sun and is created by sound and a desturbance or bubble in a liquid enjoy www.youtube.com... YouTube Link as far as i can tell two sound frequencies are directed at the centre of a spherical flask with liquid and an impurity or bubble is created that expands and callapses so fast a small star like emition is created anyone like the idea of creating a star in a jar xploder reply posted on 27-8-2010 @ 07:32 AM by Wow, wait, I can hardly grasp what that video was saying...they think the center of this "star in a jar" might actually be hot enough to cause nuclear fusion...truly amazing stuff, this must surely have some sort of potential for low cost sustainable power generation...the key was in sound/frequencies/vibration all along. [edit on 27/8/10 by CHA0S] reply posted on 27-8-2010 @ 08:34 AM by reply to post by CHA0S Likewise, I thought this pretty amazing stuff

45. SL100 System sonoluminescence kits ready to run. The Original SL100 System (available for sale outside the U.S. only) http://www.sonoluminescence.com/kits.html

The Original SL100 System (available for sale outside the U.S. only) We are pleased to offer the model SL100 sonoluminescence kit. Now you can easily acoustically trap bubbles and make them glow. As reported in Scientific American (February 1995) and Physics Today (September 1994) sonoluminescence (SL) is the process where a small gas bubble is trapped in water by the presence of an acoustical field. In the presence of the oscillating sound field the bubble expands and then violently collapses giving off a brief flash of light less than 50 ps in duration. This process is repeated tens of thousands of times a second with remarkable precision. What process is involved that actually makes the light is still not understood and thus SL has become a topic of intense experimentation and intrigue. After years of research we have developed a system that is easy to use and really works the first time! The SL 100 uses an external ultrasonic horn to drive an open rectangular cell. The SL100 is a true research grade system that is far superior to the conventional spherical glass cells which may or may not work. After the water has been degassed it should take no longer than five minutes for the novice user to find the resonance, seed the bubble and make it glow. The kit comes complete with a powerful ultrasonic horn, rectangular resonant cavity with attached PZT microphone, control box, and degassing flask as shown in the picture. The control box contains a high voltage power amplifier with impedance matching inductor, resonance detection circuitry, and a push button current source to seed the bubble maker.

46. Sonoluminescence sonoluminescence is the process of converting sound into light. There are two types of sonoluminescence, Multiple Bubble Sonoluminesence (MBSL) and Single Bubble sonoluminescence http://laser.physics.sunysb.edu/~ken/simons/simonsp3.html

Sonoluminescence Sonoluminescence is the process of converting sound into light. There are two types of sonoluminescence, Multiple Bubble Sonoluminesence (MBSL) and Single Bubble Sonoluminescence (SBSL). In order to perform sonoluminescence, a flask full of water or whatever medium is connected to two piezoelectric transducers (used to amplify sound). The amplifiers feed into the transducers which then start emitting a very concentrated amount of sound, usually around 20-35 Khz. At this point in time, bubbles begin to form, dubbed as "cavitation bubbles." Once a cavitation bubble is captured in the middle of the flask, it is under the effects of the amplified sound. At a certain resonance point, the bubble begins to emit flashes of white light. Apparatus: Design Schematics Image of SBSL What I've done so far

47. Sound Waves Size Up Sonoluminescence - Physicsworld.com physicsworld.com news, views and information for the global physics community from Institute of Physics Publishing http://physicsworld.com/cws/article/news/5032

@import url(http://images.iop.org/cws/css/v2/screen.css); @import url(http://images.iop.org/cws/css/themes/phw2009.css); @import url(http://images.iop.org/cws/css/datePicker.css); @import url(http://images.iop.org/cws/css/jquery.lightbox.css); Skip to the content A website from the Institute of Physics Sign in Forgotten your password? Sign up Contact us ... physicsworld.com Search Filter by topic Condensed matter Home News Blog Multimedia ... Events News archive December 2002 November 2002 October 2002 September 2002 ... January 2002 Webinar series Register now Corporate video "Moving the nanoworld" by Physik Instrumente (PI) view video Key suppliers Corporate partners Contact us for advertising information ... Sign up To enjoy free access to all high-quality "In depth" content, including topical features, reviews and opinion sign up Share this E-mail to a friend Twitter Facebook Connotea ... CiteUlike Related stories Sonoluminescence: the star in a jar Sonoluminescence and bubble stability The shape of sonoluminescence The bubble bursts for shrimps ... Molecular fingerprints in sonoluminescence Related links Mathias Fink’s homepage Phys. Rev. Lett.

48. Tiny Bubbles Get Hotter Than The Sun - Technology & Science - Science - LiveScie Mar 03, 2005 The bubbles are driven to form and collapse in a process called sonoluminescence, in which a liquid is blasted with highfrequency sound waves between 20 and 40 http://www.msnbc.msn.com/id/7082639/

var collarity_appid = 'msnbc';var collarity_kw = 'University of Illinois at Urbana-Champaign';var collarity_tags = ''; Jump to story headline MSN Hotmail More ... Science on msnbc.com Search ad info Tiny bubbles get hotter than sun Scientists study process that some suspect may involve small-scale fusion ad info Nature via LiveScience This illustration shows sonoluminescence at work, moving from upper right to lower left. At low sound-wave pressure, a gas bubble expands. An increase in pressure triggers its collapse, creating a smaller bubble of partly ionized gas. Temperatures soar, and the resulting plasma emits light that is detected in the experiment. By Michael Schirber LiveScience updated 3/3/2005 8:53:18 PM ET Share Print Font: Just as blowing up a bubble leads to a pop, so can shrinking it. Rapidly collapsing bubbles have long been known to reach astonishing temperatures. Now scientists have measured just how hot. And they're surprised. "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 degrees Fahrenheit] — is four times hotter than the surface of our Sun."

49. [hep-th/9811174] Sonoluminescence And The Dynamical Casimir Effect Abstract It has been suggested by various authors that the `dynamical Casimir effect' might prove responsible for the production of visiblelight photons in the bubble collapse http://arxiv.org/abs/hep-th/9811174

arXiv.org hep-th Search or Article-id Help Advanced search All papers Titles Authors Abstracts Full text Help pages Full-text links: Download: PDF PostScript Other formats Current browse context: hep-th new recent SLAC-SPIRES HEP refers to ... what is this? Bookmark what is this? High Energy Physics - Theory Title: Sonoluminescence and the Dynamical Casimir Effect Authors: K. A. Milton (Submitted on 19 Nov 1998) Abstract: It has been suggested by various authors that the `dynamical Casimir effect' might prove responsible for the production of visible-light photons in the bubble collapse which occurs in sonoluminescence. Previously, I have argued against this point of view based on energetic considerations, in the adiabatic approximation. Those arguments have recently been strengthened by the demonstration of the equivalence between van der Waals and Casimir energies. In this note I concentrate on the other extreme possibility, that of the validity of the `sudden approximation' where in effect the bubble instantaneously ceases to exist. Previous estimates which seemed to support the relevance of the Casimir effect are shown to be unconvincing because they require macroscopic changes on excessively small time scales, involving the entire volume of the bubble at maximum radius. Comments: 8 pages, 1 figure, uses sprocl.sty. Talk at 4th Workshop on Quantum Field Theory Under the Influence of External Conditions

50. Sonoluminescence And Fusion Sobering Thoughts from a Beaker Fusion Anomaly Reported in Non{Science} Magazine. March 5 Evidence showing that nuclear fusion can occur in a beaker of liquid excited by sound http://www.21stcenturysciencetech.com/articles/sonolum.html

March 5 Evidence showing that nuclear fusion can occur in a beaker of liquid excited by sound waves, has produced a new flurry of press activity reminiscent of that around the 1989 announcement by Pons and Fleischmann that they had achieved fusion in an electrochemical cell. The new evidence, reporting on experiments by a team at Oak Ridge National Laboratory, is reported in an March 8, 2002 article in Science magazine that was released yesterday. As then, the prevailing popular delusions about what science is dominate the discussion, even by the scientists themselves. As the announcment of the 1989 cold fusion anomaly came under attack from lying establishment physicists, discussion unfortunately, degenerated into practical arguments over whether or not, and how soon, a cold-fusion cell in every basement could replace the gas furnace or oil burner. Whether the results announced in the 8 March Science article, ``Evidence for Nuclear Emissions During Acoustic Cavitation,'' prove sound or not, we are reminded again that scientific progress can result only from the posing and resolution of true paradoxes in the mind of an experimental investigator. The important subject in this case is sonoluminescence, the emission of pulses of blue light from the collapse of air bubbles in a liquid that has been excited by sound waves, first studied in Germany in 1934. How a light wave could be produced by a sound wave was the unsolved paradox. In the Oak Ridge experiments, the hydrogen in acetone (C-3 H-6 O), the principal ingredient in nail polish remover, is replaced by the heavier deuterium isotope. Sound waves are passed through the liquid at the same time as a pulse of high energy neutrons. It is hypothesized that the acoustic bubbles which form, then collapse so fast that not only is light produced, but the deuterium is somehow caused to undergo nuclear fusion. The evidence for this is in the excess of neutrons and tritium, a heavier isotope of hydrogen, detected in the solution. The amounts are very small, however, and the existence of the effect is being challenged.

51. Sonoluminescence The Setup A trapped bubble So far, I have actually been able to produce sonoluminescence. However, the first encounter with sonoluminescence was very unstable, and much dimmer than I http://laser.physics.sunysb.edu/~ken/simons/mysonolum.html

My Work with Sonoluminescence The Setup A trapped bubble So far, I have actually been able to produce sonoluminescence. However, the first encounter with sonoluminescence was very unstable, and much dimmer than I expected it to be. The first time I had produced this phenomena, the frequency generator had been generating a frequency between 26.640 kHz and 26.669 kHz. The microphone signal was between 789 and 860 mV-rms. The water was degassed, however, it had been sitting around for a few days, thus a considerable amount of air had returned to the water. With this in mind, I degassed the water again. and instead of using room temperature water, I used much colder water (10C). The result was a brighter and more stable light. Oscilloscope Reading During Sonoluminescence Vertical Scale: .5V Horizontal Scale: 20 microseconds. For the cold degassed water, sonoluminescence occured between 26.164 kHz and 26.634 kHz and pick-up amplitudes between 434 mV- rms and 560 mV-rms. My future plans I plan to analyze the light intensity with a photomultiplier. Also, I hope to be able to find a way to photograph sonoluminescence, being that it is much too dim for a digital camera. (CCD perhaps?). Thanks to the help of Peter Amendola, I have been able to view sonoluminescence with a microscope, which magnifies the image 8x. I plan to observe sonoluminescence in different media, hopefully I can use differrent gases or liquids to improve the stability and intensity of sonoluminescence and find the optimal conditions.

52. Alternative.energy -- The Solutions, Now -- Sonoluminescence Energy alternative.energy The Solutions, Now sonoluminescence Energy. What is sonoluminescence? How does this alternative benefit people? Why have I not heard or seen much about this http://library.thinkquest.org/26366/text/alternative/sl.html

alternative.energy The Solutions, Now Sonoluminescence Energy What is sonoluminescence? How does this alternative benefit people? Why have I not heard or seen much about this technology? What is sonoluminescence? According to the Lawrence Livermore National Laboratory, "sonoluminescence is the emission of light by bubbles in a liquid excited by sound." The first process of sonoluminescence is to create a bubble with one percent argon impurity in a container filled with liquid. The size of this bubble should be about 4 microns in diameter. Next, sound waves with a frequency at around 110 decibels will bombard the bubble, causing sonoluminescence to be initiated. At first, the tiny bubble grows to at least one hundred microns wide. Then, the bubble collapses to 1 micron. During this process, the temperature of the bubble can rise as high as 72 000 K. How does this alternative benefit people? Like other alternative energies, sonoluminescence is clean and renewable, and at the same time produces large amounts of energy. It is for this very feature that it is possible with sonoluminescence to break down materials at the subatomic level; that can help to recycle different types of materials. Sonoluminescence can also be used to create fusion. Fusion is thought to occur in the bubble, for the pressure and the temperature are so high. Even several industrial laboratories have used the sonoluminescence process to fuse hydrogen into metal. Why have I not heard or seen much of this technology?

53. Sonoluminescence Experiments By TeachSpin sonoluminescence Brochure Experiments The sonoluminescence experiments that can be carried out with the SL100B cover a broad range, but can be classified into two general http://www.teachspin.com/instruments/sonoluminescence/experiments.shtml

home about us unique support users ... individual parts Sonoluminescence introduction the instrument experiments specifications accessories prices Sonoluminescence Brochure Experiments The Sonoluminescence experiments that can be carried out with the SL100B cover a broad range, but can be classified into two general categories: acoustical and optical. The acoustic experiments do not necessarily involve trapping a bubble, but rather explore the general acoustic properties of the cell and the liquid samples. The second type of experiments are all related to characterizing the light emitted from the bubble. ACOUSTIC EXPERIMENTS One of the most important topics in classical mechanics is the study of resonant phenomena and the solution to the wave equation in 3-dimensions, subject to specific boundary conditions. The acoustic wave equation, with its appropriate solutions provides fertile ground for exploring the many facets of a 3-dimensional system. For the rectangular crossection cell the eigen frequencies in which the bubbles are trapped are given by: where L x ,L y and L z are the length, width and height of the water filled cell and

54. Sonoluminescence sonoluminescence. sonoluminescence is the emission of short bursts of light from imploding bubbles in a liquid when excited by sound. The effect was first discovered at the http://www.fact-index.com/s/so/sonoluminescence.html

Main Page See live article Alphabetical index Sonoluminescence Sonoluminescence is the emission of short bursts of light from imploding bubbles in a liquid when excited by sound . The effect was first discovered at the University of Cologne in as a result of work on sonar . Interest in the topic rose again when an inner temperature of such a bubble well above one million degrees Celsius was postulated, making it a possible source for nuclear fusion energy. A major breakthrough occurred when Gaitan et al. were able to produce single bubble sonoluminescence (SBSL), in which a single bubble, trapped in a standing acoustic wave, emits light with each pulsation. This development allowed the systematic study of the phenomenon, because it allowed the isolation of the effects of just one bubble, rather than the complex environment of many bubbles. Here are some facts about sonoluminescence: The light flashes from the bubbles are extremely short - between 35 and a few hundred picoseconds long. The bubbles are very small when they emit the light - about 1 micrometer in diameter.

55. Sonoluminescence - Hack A Day sonoluminescence is one of those strange phenomenon that many would never encounter outside an academic environment. For those who have never heard of it, sonoluminescence is http://hackaday.com/2010/06/28/sonoluminescence/

56. Sonoluminescence Mp3s, Sonoluminescence Music Downloads, Sonoluminescence Songs Download the full sonoluminescence album or specific songs. eMusic also has compilations such as greatest hits and rare classic albums. Thousands of other similar artists are http://www.emusic.com/album/Luder-Sonoluminescence-MP3-Download/11700721.html

57. Sonoluminescence Definition Of Sonoluminescence In The Free Online Encyclopedia. sonoluminescence s n ō ə‚l mə′nes əns (physics) Luminescence produced by highfrequency sound waves or by phonons. http://encyclopedia2.thefreedictionary.com/sonoluminescence

58. Sonofusion, Acoustic Inertial Confinement Fusion sonoluminescence occurs when sonic pressure waves cause the growth and subsequent collapse of microscopic bubbles. Due to the high pressures released during the collapse of the http://home.fuse.net/clymer/snf/

Sonofusion The Star in a Jar History of Sonofusion Sonofusion Calculations Other Links Sonoluminescence occurs when sonic pressure waves cause the growth and subsequent collapse of microscopic bubbles. Due to the high pressures released during the collapse of the bubbles, energy can be emitted in the form of light, hence sonoluminescence. If the energy is great enough, it is thought that fusion reactions can be initiated, or sonofusion. Sonofusion or bubble cavitation is thought to be more correctly termed acoustic inertial confinement fusion (acoustic ICF). History of Sonofusion The earliest reference I have found on a sonofusion-type process is a patent by Hugh G. Flynn , a professor at the University of Rochester. Flynn passed away in 1997. US 4,333,796: Method of generating energy by acoustically induced cavitation fusion and reactor therefor. Nuclear fusion energy prodn. by liquid cavitation - using acoustic devices to produce alternating pressure pulses in liquid metal containing hydrogen isotopes. Filed: 1978-05-19. Published 1982-06-08.

59. Sonoluminescence - Hutchinson Encyclopedia Article About Emission of light by a liquid that is subjected to highfrequency sound waves. The rapid changes of pressure induced by the sound cause minute bubbles to form in the liquid http://encyclopedia.farlex.com/sonoluminescence

60. Sonoluminescence History. The effect was first discovered at the University of Cologne in 1934 as a result of work on sonar. H. Frenzel and H. Schultes put an ultrasound transducer in a tank of http://www.worldlingo.com/ma/enwiki/en/Sonoluminescence

Mul tili ngual Ar chi ve Po wer ed by Wor ldLi ngo Sonoluminescence Home Multilingual Archive Index Ch oo se your la ngua ge: English Italiano Deutsch Nederlands ... Svenska var addthis_pub="anacolta"; Sonoluminescence Sonoluminescence is the emission of short bursts of light from imploding bubbles in a liquid when excited by sound Contents History Properties Fluid Mechanics Mechanism of phenomenon ... External links History The effect was first discovered at the University of Cologne in 1934 as a result of work on sonar . H. Frenzel and H. Schultes put an ultrasound transducer in a tank of photographic developer fluid . They hoped to speed up the development process. Instead, they noticed tiny dots on the film after developing, and realized that the bubbles in the fluid were emitting light with the ultrasound turned on. It was too difficult to analyze the effect in early experiments because of the complex environment of a large number of short-lived bubbles. (This experiment is also ascribed to N. Marinesco and J.J. Trillat in 1933 which also credits them with independent discovery). This phenomenon is now referred to as multi-bubble sonoluminescence (MBSL). More than 50 years later, in

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