turn can be directly ( and automatically ) calculated, based on the time required for the compass to finish the turn, as evidenced by the fact the compass ( eventually ) produced two equal readings... one at the start of the 360 turn, and one at the end of the 360 turn.
(the compass ( eventually; produced; two equal readings... one at the start of the 360 turn, and one at the end of the 360 turn) Context(the compass ( eventually produced,List([143, 178))):(turn; can be; directly) (the time; required; ) (the compass; to finish; the turn)
the compass ( eventually produced,List([143, 178))
the compass ( eventually turn the time the compass
produced can be required to finish
two equal readings... one at the start of the 360 turn, and one at the end of the 360 turn
directly
the turn