In addition to {TAIL ~ shear actuation}, {HEAD ~ directional actuation} and damping may be effected using methods or devices of the invention 
In addition to { TAIL ~ shear actuation } , { HEAD ~ directional actuation } and damping may be effected using methods or devices of the invention
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH