Reviews3D plasma shapes created in thin air.
The night sky could soon be lit up with gigantic three-dimensional adverts, thanks to a Japanese laser display that creates glowing images in thin air.
Would you like to see the night sky full of pulsating plasma adverts? Discuss this story >> The system is being developed by the National Institute of Advanced Industrial Science and Technology (AIST) in Tokyo, in collaboration with Burton Inc and Keio University.
(New Scientist)