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Higher-resolution inkjet printouts may soon be possible thanks to a new way
to reduce ink drop size. Osman Basaran at Purdue University in Indiana has
figured out that squeezing the nozzle in just the right way can reduce the
droplets’ volume by a factor of 10. The trick is to exploit the fact that ink
sticks to the interior of an inkjet nozzle. A small delay in jetting a drop,
he’s found, shrinks it.