In a not-so-distant future, you will be able to interact with holograms, Tony Stark-style. Thanks to researchers at Japan’s Digital Nature Group, a system has been developed which allows you to touch holograms composed out of lasers.

According to the lab, they have used femtosecond lasers to develop “a method of rendering aerial and volumetric graphics”. For those unfamiliar with the concept, femtosecond lasers emit pulses for a very short duration, i.e., for one millionth of a billionth of a second. The short-duration pulses “excite” matter to create “voxels” of light, which draw 3D [...]