nanometren
A nanometer is a unit of length in the metric system equal to one billionth of a meter. It is often abbreviated as nm. The nanometer is a very small unit, so small that it is typically used to measure things at the atomic and molecular scale. For example, the diameter of a human hair is about 80,000 to 100,000 nanometers, while a water molecule is only about 0.3 nanometers across.
The nanometer is part of the nanometer scale, which is the scale of nanotechnology. Nanotechnology is the
The nanometer is a useful unit for scientists and engineers who work with materials at the atomic