Nanotechnology - The science of the very small. 

Nano is a scientific lingo for one-billionth.  A single nanometer, 1 billionth of a meter, is about four times wider than the size of an atom and more than 1,000 times narrower than the width of a human hair. 

Nanotechnology refers to the ability to manipulate individual atoms and molecules, making it possible to build machines using molecular building blocks or create materials and structures from the bottom up by designing properties to control structure.

Science and technology on the scale of a nanometer is revolutionary.  It could change the way almost everything – from medicines to computers, automobiles, and objects not yet imagined.