> It would be very interesting to attempt to level a
> bedrock plane on a test area using this method.
> I've never seen it used.
TBH I suspect they used the same surveying method that they used to geo locate the entire structure and ensure incredible passage straightness. Which of course we are totally clueless of.
Yet another Lost Technology.
Edited 1 time(s). Last edit at 15-Jan-17 12:54 by Jon Ellison.