Or is it, since you have to touch the screen: http://femurdesign.com/theremin/. Alex ~~~ Alexander B. Magoun, Ph.D., Outreach Historian IEEE History Center 39 Union Street, Rutgers University New Brunswick, NJ 08901-8538 USA +1 732-981-3414 a.b.magoun at ieee.org www.ieeeghn.org @IEEEHistory www.ieee.org/history_center IEEE - Advancing Technology for Humanity