Fifty Shades of Spray

Click is getting virtually artistic as Nick Kwek is in Estonia to become a graffiti artist, with bit of artistic and technical help in the form of a projector and handheld spray printer to guide him. Lara Lewington has been at Photo London to look at the latest in holographic art and to discover how virtual reality can augment the experience of viewing art. Kate Russell explains how to protect yourself online in this week's tech hack and Marc Cieslak becomes a space ship captain in charge of the Click crew as he tries out the new multiplayer virtual reality Star Trek game from Ubisoft.