The Ancient Greeks may have invented an intricate pulley system of ropes and levers to lift vast blocks weighing up to 900 lbs when building their enormous structures. In the sixth century BC, the ...
An integrated pulley system allows items to be hoisted up and down around this workstation by Italian design graduate Micaela Nardella (+ slideshow). Micaela Nardella was influenced by the movement of ...
A crane is a tower or derrick equipped with cables and pulleys that can be used both to lift and lower materials and to shift them horizontally. Cranes are commonly employed in the construction ...
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