1 nanometer is a new material concept

1.1 nanometer is a new understanding of the physical world level

Nano with Km, m, Cm, is a unit of length measurement, it is the English "Nanometer" in translation "Nano Mitt" for short, the English prefix "Nano" is one billionth.Therefore, a nanometer is one billionth of a meter (10-9m), denoted nm. However, use this scale to observe, study and transform the reality of the material world all around us, it is not quite so simple.Since the beginning of the last century, the scientific community made after quantum mechanics and relativity, 
Human observation of the material world, research and scientific practice, Have gained tremendous progress from the micro and macro aspects of the research.