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do. This has gne n since befre peple learned that atoms
exist, and has accelerated ever since. Although different
industries use different materials and different tools and
methods, the basic aim is always the same. They seek to make
better things, and make them more consistently, and that means
better control of the structure of matter. From this perspective,
nanotechnology is just the next, natural step in a progression
that has been under way for millennia.

Consider the compact discs now replacing older stereo records:
both the old and the new technologies stamp patterns into
plastic, but for CDs, the bumps on the stamping surface are only
about 130 by 600 nanometers in size, versus 100,000 nanometers or
so for t