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A nanometer is one billionth of a meter. (A meter is 39.37 inches, or slightly longer than one yard.) The prefix “nano” means “one billionth”, or 10-9, in the international system for units of weights and measure. The abbreviation for nanometer is "nm."
For visual examples of the size of the nanoscale, see The Size of Nano.
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The NNI Dashboard shows annual spending for the agencies participating in the NNI. This cross-cut budget information can be sorted by agency and by Program Component Area to better identify funding trends.