these have been competed by a company called odg, and they've been designed far more with the consumer to get the best out of them, i want to move around. so, if i stand up, at the moment, there's a 360—degree video playing. if i look around, i get a different viewpoint here. i see a robot in front of me and what looks like some kind of futuristic hospital. and there's a guy over here, who seems very unhappy and another guy who looks seems to be shooting at him. the images move seemlessly with my head. if i look around i can see planet earth in front of me. but this is the cool bit, it moves. i can walk inside it and see from outside of the planet, and appreciate it from this angle, and if i stand here, yep, a space station that's orbiting the earth as well. now, the glasses know where they are, spacially, because there's a couple of cameras on front of them. and all of the processing is happening on the head set itself. the odgr—8 glasses will cost around £800 but they are basically a wearable computer. there are some cheaper lower tech ar options out there, though. there are lots of