Hi Thadd earlier this year we went to great details trying to find out how and if The Ancient Egyptians could have turned a 90 degree angle. The reason I say this is that getting the East - West line is a snap as you just sight the setting or rising sun on The Summer Solstice.

To my way of thinking all that is need is acceptance that The AE's could bisect an angle. Thus having gotten an East-West line they simply bisected it at the 1000 double Remen point and proceeded North or ........

They could have surveyed at night using a star as a back sight but which one ?

Survey at night ? How could they have done this. Actually it is quite easy. One person standing at Point B or starting point sighting the star, and then another person beside him with a flare or torch and a third man in the field with a torch as well. One man sights, the man at base moves the torch either to his left or right in response to the way he wants the third man to go. The third man seeing the torch responds in kind.

I know this works ... as I have done this in my survey career albeit we eventually found it easier to use flash lights

Cheers
Don Barone

" If everything is simply a coincidence what then is the point of studying or measuring or analyzing anything in the ancient world ?" db