Developed by Knud Molenbach of Scaitech and LEGO, circa 1985 (mpeg, 44 MB, unpublished video)
An example of a truly graspable user interface with system reciprocity. (mpeg, 38 MB, unpublished video)
An early graspable user interface consisting of a prototype system using specialized input devices operating on the Wacom digitizing tablet, circa 1987 (mpeg, 42 MB, unpublished video)
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