Wind - Energy and kidsWindmills work because they slow down the speed of the wind. . Two types of wind machines are commonly used today, the horizontal–axis with blades like.vertical axis windmills kids,EIA Energy Kids - Wind - US Energy Information AdministrationSome versions of the vertical-axis turbine are 100 feet tall and 50 feet wide. Very few vertical-axis wind turbines are in use today because they do not perform as.
vertical axis windmills kids