In one embodiment the apparatus further includes a device fabricated with SOI, SOG, or IC techniques where the device includes an accelerometer, gyroscope, transducer, pressure sensor, resonator, signal detection circuit, energy scavenger, a three dimensional microphone or ultrasonic device capable of measuring or sending {HEAD ~ signals} along {TAIL ~ at least one axis} 
along
In one embodiment the apparatus further includes a device fabricated with SOI , SOG , or IC techniques where the device includes an accelerometer , gyroscope , transducer , pressure sensor , resonator , signal detection circuit , energy scavenger , a three dimensional microphone or ultrasonic device capable of measuring or sending { HEAD ~ signals } along { TAIL ~ at least one axis }
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