NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Jackson McDonald
Date: 2013 Dec 21, 21:17 -0500
JMcD
The coffee can lid improvised artificial horizon continues to evolve. The latest modification is a clear plastic A frame greenhouse that acts as a windshield (see attached image). The greenhouse plastic is from a discarded plastic container. Careful cuts and taped seams make for a stable structure that fits perfectly over the water tub. It is necessary to remove the greenhouse from the water tube immediately after each celestial observation to prevent interior fogging. It turns out that a solar still has also been created by accident.
Trials have been in the plus or minus 1 minute of arc range with the reflected Sun appearing a tad fuzzy. Glass would be better but not as handy.
Greg Rudzinski
----------------------------------------------------------------
NavList message boards and member settings: www.fer3.com/NavList
Members may optionally receive posts by email..
To cancel email delivery, send a message to NoMail[at]fer3.com
----------------------------------------------------------------
Linked File: https://www.fer3..com/arc/imgx/f3-002.JPG
