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The tongue has fairly good motoric control. A tiny tracking device could be mounted to the inside surface of a tooth and operated with the tip of the tongue to control the mouse on a computer. The signal is transmitted wireless. It could be a bluetooth device where the battery is recharged by heavy chewing
or a passively powered device like they use for RFID tags.
It would be fun to watch beginners wag their tongues until they gag. Advanced users would just sit there calmly with no visible motion with apparently telepathic control over the mouse.
I haven't figured out yet how to disable the mouse while I talk or eat.
"2-dimensional piezoelectric thin film array on a silicon wafer ...to serve handicapped persons to operate a computer with the help of the tongue." [half, Oct 05 2004, last modified Oct 21 2004]
"Tongue-mouse for quadriplegics"
[half, Oct 05 2004, last modified Oct 21 2004]
||And what, you spit to click?
||No, tap with your tongue stud. Hey, as long as you're attaching things already...
||One of the best I've heard for a while. Buns aplenty.