Louis Kahn | Aeolian Facades: Making Building Surfaces Express the Shape of Wind

An entire building facade is covered with tens of thousands of small aluminum thin plates, each hinged on one side and suspended on a grid, free to flip. When the wind blows, the thin plates flip one by one according to the wind's strength and direction, and reflected light flashes with them. The entire facade thus becomes a screen that displays the wind field in real-time—waves, vortices, and the paths of gusts are all visible. There are no motors or electricity; the power comes entirely from the air. The thin plates are matte or polished aluminum, uniform in size, arranged in a regular grid. The facade itself is a simple volume, not competing with this skin. Shot in daylight with side lighting, the flipping thin plates create uneven light and shadow ripples. Avoid: adding motor drive, thin plates being fixed, irregular sizes and arrangement, complex facade shape that steals the show.

Translated from Chinese by AI.

一整面建築立面被數萬片小型的鋁製薄板覆蓋,每一片以單邊鉸接懸掛在網格上,可以自由翻動。風吹過時,薄板依風的強弱與方向逐一翻轉,反射光隨之閃動,整面立面因此變成一塊即時顯示風場的螢幕——波紋、漩渦與陣風的路徑都看得見。沒有任何馬達或電力,動力完全來自空氣。薄板為霧面或拋光的鋁,尺寸統一,排列為規則網格。立面本身為單純的量體,不與這層皮競爭。日間側光下拍攝,翻動的薄板產生不均勻的明暗波紋。避免:加入馬達驅動、薄板固定不動、尺寸不一排列不規則、立面造型複雜搶戲。