Alternative Construction Theories
Some researchers propose the wooden crane theory, suggesting that the Egyptians might have used wooden cranes with counterweights to lift blocks. However, this theory has been disputed because Egypt lacked trees strong enough to lift such massive weights.
The stone blocks used in the Great Pyramid averaged around 2.5 tons each—too heavy for wooden cranes without breaking them. This weight limitation makes this theory less likely than others.
The pulley and fulcrum theory offers another possibility. Since Egyptians used pulleys on ships, they might have adapted this technology to hoist blocks up ramps, using fulcrums to position them precisely. This combination of simple machines could have made the work more efficient.
Engineering insight: Simple machines like ramps, levers, and pulleys multiply force, allowing humans to move objects much heavier than themselves!