A Conversation for The Groma: The Tool That Built An Empire
In my mind's eye...
Clevermoniker Started conversation Jul 24, 2007
Very informative article! But, I was having a hard time picturing what it looks like. Then, (once I looked it up elsewhere) I had a hard time picturing how it was used (e.g.: the portion where the rods of various lengths were lined up with 3 of the plumb lines on the instrument). I'll just keep looking up more info, though! 
CM
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In my mind's eye...
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