Tighter hologram lights with nano zinc

Researchers out of China and Singapore have discovered that zinc oxide nanoparticles may be the secret to finally achieving high-resolution 3D holograms that are often promised in science fiction but yet to be delivered in reality.

Although rudimentary 3D light shows that play off particles in the air, reflections to trick the eye, spinning lights, or projectors to present an illusion of depth hav...