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Science 8 November 1996:
Vol. 274. no. 5289, pp. 919 - 920
DOI: 10.1126/science.274.5289.919
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Research News

Andrew Watson

In a series of recent papers, two separate groups of researchers, one French and the other a U.S.-Anglo-French collaboration, have shown that there is more than meets the eye in the decades-old mathematical description of diffusion. The diffusion equation, they contend, can do more than simply provide concentrations at specific points and times: With a newly identified exponent, it also produces information about how the process progressed.

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