{HEAD ~ This technique} involves the end of a rod of YBa2 Cu3 Ox melted with a hydrogen oxygen torch, followed by lowering onto {TAIL ~ the edge} of a spinning wheel 
{ HEAD ~ This technique } involves the end of a rod of YBa2 Cu3 Ox melted with a hydrogen oxygen torch , followed by lowering onto { TAIL ~ the edge } of a spinning wheel
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 OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH