It is by no means improbable that Cabot, who was an expert navigator, knew that great-circle sailing gave the shorter course.
This is not great-circle sailing, and the ship so navigated does not take the shortest path.
Our voyaging is only great-circle sailing, and the doctors prescribe for diseases of the skin merely.
|great circle |
A circle on the surface of a sphere whose plane passes through the center of the sphere. The Earth's equator is a great circle on the sphere of the globe.