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1513 points by pentagrama 1d ago 1096 comments

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1247 points by jbredeche 5d ago 529 comments

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816 points by LorenDB 1d ago 277 comments

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341 points by kragniz 3d ago 73 comments

Ask HN: Can tube from Mt Rainier summit to Seattle bring sunlight during winter?

2 amichail 5 5/20/2025, 3:29:50 PM

If not, why not?

Comments (5)

throw310822 · 6h ago

But then, a tower a few miles/kms tall straight above the city might be more practical. I don't know if such a structure can be built, but it might be simpler and cheaper than a skyscraper because it's basically empty. The hardest part might be to make the top as large as possible to collect max sunlight.

slater · 7h ago

what tube?

amichail · 7h ago

Would constructing a light tube like that work?

AnimalMuppet · 7h ago

No. Such a tube would have losses. By the time it got to Seattle, you wouldn't have much left.

gladiatr72 · 3h ago

But the visuals... SED sufferers hudling around a dimly glowing aperture during the winter months.. like hobos around a drum fire..