TechnologyThe US army has made a virtual North Korea to train its soldiers The US army has built a system that can quickly create virtual locations for soldiers to train in. It took only three days to make North and South Korea 51¶¯Âþ
Technology3D ‘holograms’ made with lasers by moving one particle at a time By moving a single particle with an invisible laser beam, we can create three-dimensional images like the holograms in sci-fi movies that float in thin air 51¶¯Âþ