Windmills produce mechanical energy through wind power. Were used to grind grain and produce flour and oil. It is supposed to be invented and first used in Persia in VIII century. They are widely spread in Europe during the Middle Ages.
Wooden 3D puzzle constructor with solar panel.
Place in the sun and the engine will run …
- Size in mm – 105/55/160
- Number of parts – 21
Price: 19.90 lv