Furthermore the Cubit wandered in length over time, probably based on a real ratio of the Pharaoh or Builder's physic.

Of the recovered Cubit Rods all differ subtly from each other, as I recall no two are exactly the same length.

It wouldn't matter on any single project as long as all cubits on that project were identical.

But before you could work a mathematical solution like this wouldn't you need a real cubit from THIS project?

Jammer