{TAIL ~ An insulating surface} covers {HEAD ~ the magnet} and a conductive liquid is disposed in a channel defined by the insulating surface and the lower case sidewalls 
{ TAIL ~ An insulating surface } covers { HEAD ~ the magnet } and a conductive liquid is disposed in a channel defined by the insulating surface and the lower case sidewalls
TAIL 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 OTH OTH OTH OTH OTH OTH OTH