How to outsmart gravity?

At school, your teacher showed a documentary on wind turbines. You were impressed by the height of these huge structures and the size of their rotors. You wonder why wind turbines don’t fall forward, even though you, when you’re carrying your loaded packsack, sometimes feel wobbly. To resolve this mystery, you decide to build your own miniature windmill and see if you can outsmart gravity too! - Activity developed by Éclairs de sciences.