Final answer:
The technique used in the design of Fallingwater is organic architecture, which emphasizes the harmonious integration of structure and nature using local materials and reinforced concrete cantilevered patios.
Step-by-step explanation:
The Wright-designed house "Fallingwater" uses the technique of organic architecture, exemplified by its integration with the natural environment. Frank Lloyd Wright's genius in the house's siting was unconventional; the house was placed directly over the waterfall rather than facing it, creating a unique experience where the sound of water enhances the ambiance without the visual distraction. Wright used local materials and reinforced concrete cantilevered patios to make nature an integral part of the design, harmoniously blending the home with its surroundings.
Fallingwater is celebrated for its architectural innovation, particularly the use of cantilevers that extend the house out over the stream. No aspect of the home's environment was overlooked, as demonstrated by Wright's choice to integrate a large rock outcropping into the interior and his attention to the orientation of windows to emphasize views of the trees and horizon, rather than the waterfall itself. This commitment to organic architecture has made Fallingwater an iconic example of Wright's architectural philosophy and a hallmark of American architecture.