There is evidence that nanotechnology is not wholly new. For instance, the Lycurgus cup, a magnificent decorative Roman artifact from around the year 400 AD, is composed of glass that changes color as light is shone through it. Gold-silver alloyed nanoparticles are present in the glass. Also Damascus swords made of steel were renowned for their incredible toughness, resistance to breaking, and razor-sharp cutting edges. Oriented nanoscale wire-and-tube-like patterns was found in the steel blades, which very probably improved the material's characteristics.
#nanotech #nanotechnology
