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01/01-- This diagram illustrates a phenomenon called "period doubling," in which the droplets coming out of a nozzle are not always the same size. Instead, every other drop, or every fourth drop, is the same size, depending on how fast the liquid is being sprayed. Period doubling decreases the precision of equipment used for combinatorial chemistry, in which thousands of experiments are carried out simultaneously to speed up the discovery of new drugs and other products. Purdue University chemical engineering Professor
Osman Basaran's research team was the first to compute the mathematics behind period doubling. (Purdue News Service illustration courtesy of Osman Basaran)
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(Purdue News Service Photo by David Umberger)
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David Umberger
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