Abbreviated as nm, unit of length equal to 10-9 metres, and equal to 10 Å (Angstroms).

1,000,000 = 1 mmDiameter of pin head
100,000Width of a human hair
10,000Size of red blood cell MEMS
1,000 = 1µmWidth of circuit lines on a chip
100Size of a Virus
10The distance between the head on a hard disk drive and the media.
1 = 1nmdiameter of a buckyball, diameter of DNA
0.1 = 1 Angstromdiameter of hydrogen atom

See also: Angstrom, Metre.

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Subjects: Units