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Nanotechnology is the science of managing and manipulating matter at the atomic level. “Nano” refers to nanometer, or one billionth of a meter, the length scale used to depict atomic dimensions.
The behavior of materials at the nanoscale is often very different from when they are in a larger form. Nanomaterials can be stronger, lighter, more easily recyclable, and are often able to conduct heat or electricity in a different way. They can even change color.
These special attributes are already being used in a number of ways, such as in semiconductors, scratch-free paint, wrinkle and stain-resistant fabrics, sunscreen lotions, skis and photographic paper.
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