Abstract: A method and system for computer programming using speech and one or two hand gesture input is described. The system generally uses a plurality of microphones and cameras as input devices. A configurable event recognition system is described allowing various software objects in a system to respond to speech and hand gesture and other input. From this input program code is produced that can be compiled at any time. Various speech and hand gesture events invoke functions within programs to modify programs, move text and punctuation in a word processor, manipulate mathematical objects, perform data mining, perform natural language interne search, modify project management tasks and visualizations, perform 3D modeling, web page design and web page data entry, and television and DVR programming.

Abstract: A magnetic roller system configured for use within a web handling system, the system including a drive hub, and a roller that is magnetically coupled to the drive hub. The roller is configured to support a web of material. An adjustable gap is defined between the drive hub and the roller. The strength of the magnetic coupling increases as the adjustable gap decreases.