Nanometer

The nanometer is the International System of Units (SI) unit of length that is equal to one billionth of a meter (1 nm = 10⁻⁹ m) or one millionth of a millimeter.

The symbol for nanometer is nm.

The name combines the prefix nano with the unit meter

Can be written in scientific notation as 1 nm = 10⁻⁹m and it's just 11000 000{displaystyle {frac {1}{1000000}}}} meters.

One nanometer is equal to 10 angstroms.

Recently, the unit has gained notoriety in the study of nanotechnology, an area that studies materials that have dimensions of a few nanometers.

The nanometer is used to express dimensions on the atomic scale:

• The diameter of a helium atom is 0.1 nm
• The diameter of a ribosome is about 20 nm.

It is also used to measure the wavelength of ultraviolet radiation, infrared radiation, and light. Visible light ranges from 400 to 700 nm.

Human lungs can only remove particles larger than 200 nanometers. Smaller particles can reach any part of the body and cause damage and tumors.

The diameter of human hair ranges from 70 µm (70,000 nm) to 80 µm (80,000 nm).

Equivalences

.1 nm = 0.001 μm
.1 nm = 0,000 001 mm
.1 nm = 0,000 000 1 cm
.1 nm = 0,000 000 01 dm
.1 nm = 0,000 000 001 m
.1 nm = 0,000 000 1 dam
.1 nm = 0,000 000 01 hm
.1 nm = 0,000 000 001 km
.1 nm = 10 Å
.1 nm = 1 000 pm
.1 nm = 1 000 fm
.1 nm = 1 000 000 am
.1 nm = 1 000 000 000
.1 nm = 1 000 000 000 000