ScienceNano-Sized Spirals Of Gold Could Protect Against Identity Theft Tiny spirals of gold too small for the naked eye to see could foil identity theft or counterfeiting, researchers suggest. Only visible under certain kinds of light, they could protect currency and credit or identification cards, they say.by Jim Algar
ScienceMesh With Nano-Particle Coating Could Be Effective, Cheap Tool For Oil-Spill Cleanupby Jim Algar