Glass recognises numbers just by looking

We have smartphones, smart watches, even smart fridges. But now, from a paper published in the journal Photonics Research, we could be seeing smart glass. Researchers from the University of Wisconsin-Madison created a piece of glass that can mimic machine visual perception, basically how smart phones recognize your face to unlock the device, without needing any camera sensors, computer chips, or even a power supply! All the glass needs is light and tiny imperfections called "bubbles" within the glass to direct that light appropriately. Right now it has the capability to tell, in real time,... Like this podcast? Please help us by supporting the Naked Scientists