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Old 05-18-2021, 10:38 PM   #2 (permalink)
freebeard
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As soon as I saw the thread title I thought Seraphium and the Schist disk.

I'm only 38 minutes in but I am being driven from the house by the need for groceries. My theory for the control they had over surfaces is Electrical Discharge Machining.

edit:

Precise orbit from antiquity? At 13:30 he mentions the precision machining.
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Last edited by freebeard; 05-19-2021 at 12:27 AM..
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