Welcome back to the our channel. In this feature, we will the marvels of engineering in the operations of the world-renowned artificial waterway, the Panama Canal. Cool video about tugboats. Missed the details about engineering the Panama Canal. Was hoping for answers to quotations like these: Why are locks necessary? Why not just dig a big trench? How is the water pumped to raise the water level in the locks? What happens to the excess water? Does it get dumped into the ocean, or reused? One can only be amazed and stunned by the dynamics interaction and the work done by Panama canal's personnel particularly the tugboats that are marvelous machines doing crucial job and making huge impact serving/securing the passage of 9000 ships a year and enabling 96.8% of world huge to sail through canal,without the Panama canal world economy/trade will experience a serious handicap, which avoiding it is essential to world economy and its durable development.