A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Norm Goldblatt
Date: 2016 Mar 4, 18:17 -0800
Slightly OT, I made this stage prop for a show I was doing. A bit jokey but it is actually a good introduction to altitude measurement, without the compications of mirrors. There were several stage lights which I aimed at and it was clear to the audience the the altitude was different.