141. Acoustic Holography An introduction with articles on acoustic imagery, nearfield methods, applications and suppliers. http://www.acoustic-holography.com

Acoustic holography Holography of a cooling fan Acoustic holography is an acoustical measurement technique used to determine the spatial propagation of acoustical waves, or for detecting acoustic sources or objects. It is based on spatial fourier transforms. Acoustic imagery Acoustic holography Nearfield methods Applications ... Suppliers Updated 17th July 2007 Criminal Defense Lawyer cash flow round the world thanks giving ... debt consolidation

142. Sonoluminescence Homepage Maker of sonoluminescence kits. Provides instructions and suggested experiments. http://www.sonoluminescence.com/

Sonoluminescence apparatus ready to run. Email: sl100@sonoluminescence.com johnkord@yahoo.com

143. Welcome To Impulse Devices, Inc. | Impulse Devices, Inc. . Specializing In Physi Developing a Sonofusion power generator which harnesses the energy in sonoluminescence to provide the necessary temperatures for fusion reactions. http://www.impulsedevices.com/

About Company History and Timeline Executive Biographies Employment ... Home Welcome to Impulse Devices, Inc. Impulse Devices, Inc. is an applied physics research and development company specializing in physical acoustics, particularly acoustic cavitation of liquid media under high pressure. Contact Us Site by Spiral Studios

144. Physics News Graphics: The Sonoluminescence Process Provides a four step theory on sonoluminescence. http://www.aip.org/png/html/sono1.htm

SEARCH AIP Search Physics News Graphics: The Sonoluminescence Process The Soluminescence Process. Sonoluminescence is the conversion of sound into light. Ultrasonic waves are aimed at an air bubble in a small water cylinder. The sound waves cause the bubble to oscillate furiously: (a) the bubble starts out at a size around 5 microns (millionths of a meter); (b) then it expands to a maximum size (not to scale) of about 50 microns. At this large size there is a near-vacuum inside the bubble because of the relatively few air molecules present. This low-pressure near-vacuum region is surrounded outside the bubble by a much higher-pressure region, which causes (c) a catastrophic collapse of the bubble to between 0.1 and 1 microns. During this compression phase a flash of light (d) emerges from the bubble. (By Malcolm Tarlton, American Institute of Physics). Link to Physics News Preview on the movie "Chain Reaction" Back to Physics News Graphics Main Page

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