Utilization of wind

* Utilization of wind * It is much better to row boat when we have the wind at back than we have the wind at head. Wind helps boat to go forward. And people came up on the idea of a sail since we needed a tool to capture wind to make ship go forward by wind. In Egypt and Mesopotamia, people in eastside of Mediterranean Sea began to use a sail. There was a socket of mast and hole to lace rope in a sail. Other than sail, wind mill utilize the force wind. People made wind mill which spin well and make strong force wind to use wind mill for work. In Egypt B.C.3600, wind mill was used for underground water and irrigation of agro.

---

---