Imagine folding up today's newspaper only to unroll it tomorrow and find
tomorrow's news. Now, researchers have made a plastic electronic material that
could make such fantasies come true.
With the debut of electronic ink a few years ago, researchers took a step toward
meshing the data-handling power of electronics with the flexibility and
convenience of paper. Such inks, developed independently by teams at the
Massachusetts Institute of Technology (MIT) in Cambridge and Xerox's Palo Alto
Research Center in California, contain particles that change a pixel's color–say,
from black to white–when exposed to an electric current (SN: 6/20/98, p. 396).
Among the early uses of electronic ink were large, low-resolution store signs for
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