Originally posted by the Voice of America.
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               Creating Physical Virtual Reality With Tiny Drones

   As many computer gamers know, virtual reality is a three-dimensional
   picture, projected inside special googles. It can fool your brain into
   thinking the computer world is the real world. But If you try to touch
   it, it's not there. Now Canadian researchers say it may be possible to
   create a physical virtual reality using tiny drones. VOA's George Putic
   reports.
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   [1]http://www.voanews.com/media/video/physical-virtual-reality-with-tin
   y-drones/3067371.html

References

   1. http://www.voanews.com/media/video/physical-virtual-reality-with-tiny-drones/3067371.html