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