STEM与日常科技·英语30篇（7）
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Why Smart Curtains Adjust Tilt Angles Based on Sun Position
智能窗帘为何依据太阳位置自动调节百叶角度
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Smart curtains use GPS location, clock time, and astronomical algorithms to predict the sun’s path daily.
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Built-in light sensors verify actual brightness and fine-tune slat angles beyond theoretical calculations.
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Each slat rotates independently to block glare while maximizing natural light indoors.
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In summer, slats tilt upward to reflect hot sunlight; in winter, they tilt downward to capture warmth.
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Motorized gears move quietly and precisely thanks to micro-stepping control circuits.
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Users can override automation via app, but default mode saves up to twenty percent on cooling costs.
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The system accounts for local weather forecasts to delay adjustments during cloudy spells.
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Slat angle changes happen gradually throughout the day rather than all at once.
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Designers test durability across thousands of cycles to ensure smooth operation for ten years.
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This blend of astronomy, materials science, and embedded software defines modern daylight harvesting.