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 one billion. ( 1,000,000,000 or 10-9 ) nanometers in a meter. One millimeter is 1/1000 (one one-thousandth) of a meter, 103 mm = 1 m. One micrometer is 1/1,000,000 (one one-millionth) of a meter 106 Î¼m = 1 m. One nanometer is 1/1,000,000,000 (one one-billionth) of a meter. 109 nm = 1 m.