It's a small, simple and stable design that catches the air very well. The best feature of this windmill is the rotating head, which allows the tail to rotate the blades straight into the wind, …
K'NEX Windmill. Windmills were used for centuries to grind corn into flour. Turn the blades of this K'NEX windmill to see how the grinding process worked. View video The windmill can be built …
Windmills were used for centuries to grind corn into flour.Turn the blades of this K'NEX windmill to see how the grinding process worked!Instructions at http...
A cute little windmill I made. For more photos, comments and INSTRUCTIONS, please visit:http://www.instructables.com/id/Turnabout-A-Knex-windmill/Music: Gymn...
2010年8月4日 · The windmill will turn steadily in winds as low as 3 miles per hour, and can easily reach 60 RPM on a normal day. The shaft of the windmill is connected to a small gearbox, …