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Gas Bubble
(Image B)
Caption:
False color image of ultrasound emitted by a titanium rod. [Image 2 of 4 related images; see also, Gas Bubble Image A, C, and D.]
More about this Image
When a gas bubble in a liquid is excited by ultrasonic acoustic waves, it can emit short flashes of light, suggesting extreme temperatures inside the bubble. These flashes of light are known as “sonoluminescence,” and occur as the bubble implodes, or cavitates.
Now, chemists supported by the National Science Foundation (NSF) have, for the first time, measured the chemical reactions and light emission from a single water bubble excited by sound waves. These findings by researchers Ken Suslick and Yuri Didenko of the University of Illinois, were reported in the July 25, 2002, Nature. For further information about this research, see NSF Press Release 02-63.
This work was supported by NSF grant CHE 00-79124.
(Preview Only)
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| Credit: |
Credit K.S. Suslick and K. J. Kolbeck, University of Illinois |
| Year of Image: |
2000 |
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Categories:
CHEMISTRY / General
Formats Available:
Restrictions:
No additional restrictions--beyond NSF's general restrictions--have been placed on this image. For a list of general restrictions that apply to this and all images in the NSF Image Library, see the section "Conditions".
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