Assertion: mercator projection | /r/HasProperty | designed as navigational tools
Facets:
value: for sailors
type: PURPOSE
Source sentences:
text: The Mercator projection was designed as navigational tools for sailors: the one property that it truly preserves is bearing, so you know that any straight line you draw on a Mercator map will follow a line of constant bearing and can therefore be navigated with a compass or other means of determining bearing.