[forty two] From prehistoric times, Egyptians probable used the strength of the once-a-year flooding in the Nile to irrigate their lands, gradually Discovering to regulate Considerably of it as a result of purposely created irrigation channels and "capture" basins.[forty three] The ancient Sumerians in Mesopotamia utilized a posh technique of https://teknologia47584.look4blog.com/74874917/top-teknologi-pembuatan-secrets