Pinwheel Propulsion

A shimmering foil pinwheel was spinning like a runaway turbine right by the gravel driveway! I dashed over and planted my front paws on the smooth border stones to check out the mechanism. Each little gust whipped its metallic magenta and silver blades into a dazzling blur. Leaning forward, I timed the rotation and gave the rim a swift, solid tap with my right paw. Zip! It clicked sharply against the hub and whirled twice as fast, kicking tiny specks of sunlight across the pebbles. My tail gave a triumphant wag—now that is proper aerodynamic speed!