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Scaling down

Nanotechnology is about working with things that are a few nanometres long. A nanometre is a millionth of a millimetre - that's how much your fingernails grow each second. But why do scientists and engineers want to do nanotechnology, and what is the benefit in building things that are so small?



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An engineer looking at gold particles with a scanning electron microscope.
An engineer looking at gold particles with a scanning electron microscope.

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