... 95Fiber-optical technology, 78 103 code division multiple access(CDMA), 93copper wire, 102 103 light emitters, 93 101 laser, 98 100 manipulating light, 100 101 nanotubes, 93–94transistor, ... for the disabled man to control the grasping device. After the software is trained to the client’s voice, the man will first say “arm” or “hand” to take command ofone of the two motors. The elbow ... as they approach them.Ruben Dominguez, a blind mathematician who has tried out the device,says, “This completes what exists for assisting blind people: the dog or the white cane, but furthermore...