Scientists say they are a step closer to developing materials that will
render people and other objects invisible.
Researchers say they can redirect light around 3-D objects using
metamaterials--artificially engineered structures created at a nano scale
that contain optical properties not found in nature, according to an
Associated Press report.
People see objects as a result of the light reflecting or scattering off
them. This new mixture of materials has "negative refractive" properties
that k
