Assertion: straight line | /r/HasProperty | great arcs
Facets:
value: for any of the gnomonic plots
type: TRANSITIVE-OBJECT
Source sentences:
text: If you go off-center, you get crazier shapes, but the key is that for ANY of the gnomonic plots, straight lines are great arcs.
text: I have been told that the only straight lines on a sphere are great circles.