Haptic technology tactual perception. The sense of touch may be classified as passive and active, and the term "haptic" is often associated with active touch to communicate or recognize objects. Haptic technology has made it possible to investigate how the human sense of touch works by allowing the creation of controlled haptic virtual objects. The word "haptic", from the ("haptikos"), means "pertaining to the sense of touch" and comes from the Greek verb ("haptesthai)", meaning "to contact" or "to touch". According to Robert Lee this sensation is also referred to as 3D touch One of the earliest applications of haptic technology was
Pushing the Senses anticipated by Echo, it is still alongside "The Singles" their most successful release in terms of peak chart position. All DVD tracks and footage appear on the United Kingdom, Japanese and European CD/DVD editions of "Pushing the Senses". The following people contributed to "Pushing the Senses": The album was released in three versions: a single disc version, a gatefold 12 inch vinyl, and a double disc version which included the album on one disc and the DVD extras on the other. The first disc is a standard stereo CD while the second disc, which is a DVD-Video, contains a documentary