Windmills

Windmills are devices that convert the energy of wind into mechanical or electrical power. Traditional windmills have large blades that rotate when the wind blows, turning gears inside the structure. This movement can be used to grind grain or pump water. Modern wind turbines, which are often called windmills in some contexts, use similar principles but primarily generate electricity. They have tall towers with large rotating blades that harness wind energy efficiently. Windmills are a renewable energy source, helping reduce reliance on fossil fuels, and are environmentally friendly, producing no harmful emissions.