The system also helped calibrate global positioning services we now rely on as navigational aids in our mobile devices. (public.nrao.edu)
But he notes that possible evidence of sunstones exists — including a rough, whitish crystal found near other navigational aids in a 16th century English shipwreck. (sciencemag.org)
A few influential titles, such as Assassin's Creed: Origins, have cut the mini-map in favor of a compass - like navigational aid on the HUD. (rdr2.com)