For my history of creativity class we have to build a model of technology that they could have made back then but did not. I've been reading and many people have incredibly different views on the origin of the sphinx and if it was even the Egyptians, but I am just trying to think of anything that they did not use that would be helpful. Thanks!
A crane, bulldozers, roads, electricity, internal combustion engines, steam engines, hydraulics, ball bearings, electronic communications, blasting powder, water-powered diamond saws, steel, air conditioning, pneumatics, rail roads, coffee, 3D modeling software, printing presses, the alphabet, calculus, physics. That's all I got!