NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Randall Morrow
Date: 2013 Dec 30, 11:28 -0800
Will anyone who has used mercury for their AH answer a few questions for me?
How much mercury is needed for how large a surface? (Ounces or mililiters)
One photo showed a tray about 14 cm 4-5cm. How much to fill this for use?
Can you name a source to purchase mercury?
How much does mercury cost?
Should I use a wooden tray or metal?
Should the storage bottle be metal?
Does mercury dissolve rubber o-rings?
Are special permits from the EPA needed to buy or use mercury?
I understand toxicity is low if you do not touch it or use it in an enclosed area. Is this true?
I am going to try to make a copy of the atique versions I have seen pictures of, with the rextangular tray and the bottle threaded to facilittate transfer back and forth.
Refer me to previous ppost if this has been covered before.
Randy
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