Ojo del Sol, Biomimetic residence in Berkeley, United States
Ojo del Sol is a residence in Berkeley featuring a prominent circular window about 15 feet (4.5 meters) in diameter facing south. The walls angle inward to create a compressed form that makes the structure more stable during earthquakes.
Eugene Tsui designed and built this experimental residence in 1995 using ideas inspired by natural organisms. The project pioneered biomimetic architecture and showed new ways to construct homes that work with environmental conditions.
The house shows how residents started bringing sustainable ideas into their homes during the 1990s. The round shape and special surfaces are part of a movement that wanted to connect nature with living spaces.
The building uses passive solar design to regulate temperature by storing heat during the day and releasing it at night into the interior spaces. The round shape and angled walls help distribute warmth evenly and improve overall heating efficiency.
The house surface has small dimples that resemble fish scales and deflect water away from the walls. The entire body is inspired by tardigrades, tiny animals that protect themselves by becoming compact and tough.
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