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Sonoluminescence: A Galaxy of Nanostars Created in a BeakerAs part of basic and applied research on advanced instrumentation technologies, the NASA Glenn Research Center is examining applications for sonoluminescence: ultrasonically produced glowing bubbles that are hotter than the Sun. In the last decade, those outside of the ultrasonic community have become interested in understanding sonoluminescence and in using some of its more interesting properties. First discovered in the 1930s as a byproduct of early work on sonar, the phenomenon is defined as the generation of light energy from sound waves. This glow, which was originally thought to be a form of static electricity, was found to be generated in flashes of much less than a billionth of a second that result when microscopic bubbles of air collapse. The temperature generated in the collapsing bubbles is at least 4 times that of the surface of the Sun.
Document ID
20050217027
Document Type
Other
Authors
Wrbanek, John D.
(NASA Glenn Research Center Cleveland, OH, United States)
Fralick, Gustave C.
(NASA Glenn Research Center Cleveland, OH, United States)
Wrbanek, Susan Y.
(NASA Glenn Research Center Cleveland, OH, United States)
Weiland, Kenneth E.
Date Acquired
September 7, 2013
Publication Date
June 1, 2005
Publication Information
Publication: Research and Technology 2004
Subject Category
Astrophysics
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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