When considering Virtual Reality, one of the major problems revolves around movement. Although millions of us were in awe when we first saw Captain Picard set foot in a Holodeck, we all posed the same question - shouldn't they bump into the walls? If our small virtual reality room can be transformed into wide open fields, then how can we safely move through them without bashing our heads into the brickwork?

One such solution is the VirtuSphere. The hollow, rotating sphere is big enough for one person to fit into, allowing them to walk, run, jump and roll at all angles in their virtual world, without bumping into objects.

A computer responds to the users movement, changing the visuals displayed in the helmet. If you're playing a shooting game, then you can run and leap for cover and the images will recognise this and respond to your actions. The safety and freedom of the sphere allows the user to move in a natural way, making the virtual world more like reality.

Ok, so it might be the obvious solution and not quite up to the holodeck's standards of virtual freedom, but the VirtuSphere is certainly the best attempt at solving the one of the biggest dilemmas in VR so far.