To 'have a chip on your shoulder' means to have an irrational resentment directed at other people (especially those who are not a member of a group or community which you identify with) because of a sense of inferiority (or an erroneous impression that others see you as inferior).
Part of the Nanotechnology glossary: A nanometer is a unit of spatial measurement that is 10-9 meter, or one billionth of a meter. It is commonly used in nanotechnology, the building of extremely small machines. This was last updated in September 2005. Contributor(s): Ian Pulham.
There are 1000000000000 nanometer in a kilometer. 1 Kilometer is equal to 1000000000000 Nanometer. 1 km = 1000000000000 nm. A kilometer is among the most widely used metric units of distance and length, including the countries traditionally using the Imperial system units. One kilometer is equal to 1000 meters.