Researchers at Melbourne University are growing diamond particles on optical fibres to transmit information they say will be impossible to hack. The diamonds, just 1/1000 of a millimetre in size, send information through a single photon of light instead of the billions of photons found in an ordinary light beam.

Here’s a nice video of the VeinViewer in action. Designed to allow doctors to see under the skin for injections et al, it’s quite a trip to see the sweet blood of the innocents pulsing only microns below the surface of their supple skin.