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Question:

How daylighting systems work at night?

I've heard of something cylindrical-like reflective material that goes down through a room from the roof which functions as a daylighting device. I actually know how it works, though but I wanted to know how could it work at night? And I've also heard that a heliostat can be set to capture moonlight at night. Will it work?

Answer:

Some go to a scrap dealer if they are in bad shape. If they are in decent shape they go back to the factory and they make a new one out of the old parts.
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