In some embodiments, the two dimensional electric motor has two arrays of {HEAD ~ permanent magnets} and {TAIL ~ at least two coils} 
In some embodiments , the two dimensional electric motor has two arrays of { HEAD ~ permanent magnets } and { TAIL ~ at least two coils }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL