Aerodynamic Descent

Navigating beneath the clearance of the heavy ground-floor entrance door, I ventured past the interior perimeter onto the exterior concrete staircase. The open air carried an active cross-draft. Near the second riser, I located a dry, winged maple seed lodged against the rough masonry. Gripping its fibrous stem, I hauled the structure up to the highest metal railing. Extending my arm clear of the baluster, I disengaged my fingers. The pod caught the air instantly, initiating a rapid autorotational descent before settling gently upon the pavement below. Terrestrial flora demonstrates sophisticated passive aerodynamics. This sector warrants deeper aerial observation.