Four similar gravitational sub systems connected with one another to keep rotational energy substantially constant caused by gravity as a result of the combined interaction between two elements having {HEAD ~ different groups} of gravity masses and {TAIL ~ different speeds} 
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Four similar gravitational sub systems connected with one another to keep rotational energy substantially constant caused by gravity as a result of the combined interaction between two elements having { HEAD ~ different groups } of gravity masses and { TAIL ~ different speeds }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL