Nanometre

The nanometre, or nanometer, is a unit of length in the International System of Units (SI), equal to one billionth or one thousand millionth of a metre (0. 000000001 m) and to 1000 picometres. One nanometre can be expressed in scientific notation as 1 × 10−9 m and as ⁠1/1000000000⁠ m.

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Source: Wikipedia · Image: Wikimedia Commons · CC BY-SA 3.0

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