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by habosa
2667 days ago
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My grandfather, who was an ophthalmologist with a passion for inventing, has shown me schematics for this kind of glass. His idea was that you could put it in places that are sunny but not warm (like a mountain hotel) to allow for indoor sunbathing. We always make fun of him for this idea as it's one of his strangest. I don't think he ever finished filing the patent. |
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