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 News
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 News