Embodiments of the invention move objects throughout two dimensional space by using {HEAD ~ a support line} that is coupled with {TAIL ~ both opposing sides} of the platform 
is coupled with
Embodiments of the invention move objects throughout two dimensional space by using { HEAD ~ a support line } that is coupled with { TAIL ~ both opposing sides } of the platform
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH