The Decelerator Helmet is a experimental approach for dealing with our fast moving society. The sense of vision is consigned to an apparatus which allows the user a perception of the world in slow motion. The inside of the helmet the video-signal of a camera is processed by a small computer. The slowed-down images are displayed right before the user’s eyes via a head-mounted display and are simultaneously shown on a monitor on the outside. The helmet has three different modes which can be selected by a remote control