NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Making an artificial horizon
From: Gary LaPook
Date: 2011 Jan 19, 21:56 -0800
From: Gary LaPook
Date: 2011 Jan 19, 21:56 -0800
| We've gone around before about mercury. There are very toxic organic compounds involving mercury but you can drink pure mercury and it just passes through you without harm. The "mad hatter" breathed mercury fumes over long term exposures which had bad results. It has had a long history for use in artificial horizons, ask Lewis and Clark. It does evaporate very slowly so don't keep the bottle in you bedroom but, otherwise, the limited exposure to fumes during the occasional use as an artificial horizon will not cause you any harm. And there is no fluid that is more reflective than mercury for use in an artificial horizon, just try to shoot stars with water or oil! gl --- On Wed, 1/19/11, Alan <alan202@verizon.net> wrote:
|
