1. A surround vision apparatus comprising at least one screen, at least one loud speaker, a plurality of projectors and at least one processor wherein the at least one screen substantially encloses a space, and wherein the plurality of projectors project images onto the said at least one screen such that the said images may be viewed from within the said enclosed space, and wherein the processor synchronises the projection of images onto the or each screen such that the images are perceived by the viewer as being uninterrupted.