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One billionth of a meter.

A unit of length equal to one billionth of a meter (.000000001 meter).

Is a unit of measurement of light wavelength. A nanometer is one millionth of a millimeter. Once called a millimicron, it is used to represent wavelength. Abbreviated nm.

Equivalent to 0.039 micro-inches

1 nanometer is equal to: Metric kilometer 1e-12 meter 1e-09 decimeter 1e-08 centimeter 1e-07 millimeter 1e-06 micrometre (micron) 0.001 angstrom 10

also see Quantum_Physics#correlation_between_energy_and_wavelenght:

[http://www.convert-me.com/en/convert/units/length/length.nanometer.en.html nanometer (Distance and Length, Metric)]

Wavelenghts table for electromagnetic emission.

dark light = low intensity

bright light = high intensity

molecule DNA etc. destructive UV ≈ 200nm (thank you ozonelayer thing;or else we all would grow extra limbs :P )

UV = erazing for electronics ≈ 300nm

light UV < 400nm

violet = 405nm

blue = 430nm

deep blue = 450nm


infrared ≈ 1000nm

FM radio ≈ 1±0.5m

... well might someone explain where the fnord magenta is placed in the electromagnetic spectrum ?!?? :/

The Nanometer Structure Consortium

Nanometer-scale Science and Technology Division

AMD enters the 90-nanometer zone