“The point has been found, the ball is ready to be launched.”

Zaenal Arifin has repeatedly given this command to the crane operator carrying concrete balls. From the west end, the crane started to move, lifting up the cable spread out from two piles. The four balls that were suspended on top of the cable began to shift towards the east pile. Once in the middle, the hook that was used to support the ball was released. The chain of balls was s