A crane was required for the construction of various facilities. The reconstructed one shown in the photo could lift weights up to 9 tons. Ropes with a diameter of 4 cm were required to lift such a load.
Probably when thicker ones were used, the device was able to carry even heavier loads. At the same time, the crane was very easy to use, did not require great effort and could even be used by a child.
A print showing a Roman crane
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