I use a devise that was discovered at Stonehenge. It is a plumb line and a sundial. It's called a Syphilitic Druid. The only drawback is it only works at noon.
I've seen lots of pictures of the Alaskan Pygmy version, but it requires lots of silly gravel and stream christening rituals and all the instructions are written in an angsty hobbit pidgin.
Thanks, I didn't know that. I showed your post to my Optics Sensei, Balthazar Nimblesnatch, and he is familiar with that method.
