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Science 10 December 1999:
Vol. 286. no. 5447, p. 2062
DOI: 10.1126/science.286.5447.2062
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News Focus

PHYSICS:
Conjuring a Solitary Sound Wave

Alexander Hellemans

Spotted 150 years ago on the water of a canal and now routinely generated in light-carrying fibers, the solitary, long-lasting waves called solitons have now been seen in yet another medium: sound. In the 15 November Physical Review Letters, a team of researchers in Japan describes how they produced acoustic solitary waves by altering the propagation of sound through an air-filled tube.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)