STEM与日常科技·英语30篇（7）

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智能窗帘为何依据太阳位置自动调节百叶角度

Smart curtains use GPS location, clock time, and astronomical algorithms to predict the sun’s path daily.
Built-in light sensors verify actual brightness and fine-tune slat angles beyond theoretical calculations.
Each slat rotates independently to block glare while maximizing natural light indoors.
In summer, slats tilt upward to reflect hot sunlight; in winter, they tilt downward to capture warmth.
Motorized gears move quietly and precisely thanks to micro-stepping control circuits.
Users can override automation via app, but default mode saves up to twenty percent on cooling costs.
The system accounts for local weather forecasts to delay adjustments during cloudy spells.
Slat angle changes happen gradually throughout the day rather than all at once.
Designers test durability across thousands of cycles to ensure smooth operation for ten years.
This blend of astronomy, materials science, and embedded software defines modern daylight harvesting.