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Caption: SEM image of a field of complex structures that during the growth have been patterned with two CO2 pulses, after which cooling the reaction thickened the growth front. This image relates to a paper that appeared in the May 17, 2013, issue of Science, published by AAAS. The paper, by Wim L. Noorduin at Harvard University in Cambridge, MA, and colleagues was titled, "Rationally Designed Complex, Hierarchical Microarchitectures."
Credit: [Image courtesy of Wim Noorduin]
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