Pitlamp
Well-known member
My neighbour just asked me if I knew how an unusual compass works. It belonged to her husband who has sadly passed away and she'd like to be able to use it. We think it allows you to determine your latitude, using the sundial ring and the curved arm (both of which are on hinges).
Can anybody help? Even if you just know the correct name for such a device, which would give a google search term, at least.
Can anybody help? Even if you just know the correct name for such a device, which would give a google search term, at least.