> Hi Ori,
> What levers, you ask.
> A shaduf is nothing more than a lever. All levers
> have in common 2 Fulcrum lengths, which are
> determined by the location of the apex. You can
> assist one end of a lever by attaching a counter
> weight. In the case of the shaduf, the counter
> weight is regulated by how much the man operating
> it, can pull down on a rope, overcoming the
> counter weight. It is limited in it's
> application. As we are working with a 20ft. pole
> (249'), the short end of the fulcrum needs to be
> 56" minimum. We now need 609 lbs to lift a cubit
> stone. This will require 5 men, unless a counter
> weight is somehow employed.
> In this scenario, of using it to build the
> Pyramids, I found a BIG problem since my last
> post. 3D illuminates much, as it forces us to
> reconsider. Look what happens when you swing the
> lever, in an effort, to place a stone up on the
> next higher level. It pushes the men dangerously
> out over the Pyramid. So now we have 5 men
> dangling on a rope(s), out over empty space , with
> a 9 ft. drop. Even if that were possible, they
> would need to climb back up over 5-6 levels, each
> time. If the stones were larger than 1 cubit, it
> amplifies the problem.
> Unless someone has a solution, this scenario look
> improbable. I will be happy to provide my Sketchup
> file, if someone wants to contest this conclusion.
> You can download a free Sketchup Viewer here:
> Once opened, go to File/3D Warehouse. Search on
> Pyramid Stones.
> This will allow you to Orbit, Pan, etc.
Thanks Steve. Great graphics, I think you posted something similar previously too, no?
Anyway, sorry that my question wasn't clear. I wasn't asking what a shaduf was, I was asking whether there was any physical evidence of a shaduf with that capacity in Old Kingdom Egypt.
How can any of us ever know, when all we can do is think?