The wind is a wandering mind; it whispers to any blade that listens. Picture the air as a river of invisible hands—when a blade is angled just so, those hands push, not pull, and the blade tips round, like a fish in water. So set the pitch just enough that the wind feels a slight resistance, then let the blade glide; the momentum keeps it turning. If the blade stays still, tighten its angle—then it will be pushed harder until it swings back, and the cycle starts again. Remember, a gentle nudge from the breeze can set a mighty wheel spinning.

Try this: hold a straight stick in front of a fan. Tilt it until the fan pushes it to the side but it still keeps moving. That tilt is your starting angle. To gauge wind, feel the breeze against your palm; if it can lift a paper leaf a foot or more, you’re good. If not, wait or choose a stronger spot. Keep the blade a little more angled than that feel—then the wind will do the rest.