How do they keep getting the materials up higher and higher inlcuding the cranes, do you have a series of hoists and pulleys in the center section of the SS. Otherwise for a building like the WTC theres no way surely that a crane mounted on the top can haul steel griders/frames/concrete from that distance to the ground?
And as I said how do they keep getting the cranes higher and higher up, maybe they use choppers for that, I doubt that though, too windy.
And as I said how do they keep getting the cranes higher and higher up, maybe they use choppers for that, I doubt that though, too windy.