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matsemann
6 months ago
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The Sundial Cannon of Åtvidaberg (2017)
But the sun isn't always at the same place at noon? So how is the magnifying glass aimed?
perilunar
6 months ago
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Same azimuth, different altitude. You could adjust the altitude angle daily, or just set the fuse along the north-south axis, and it will be lit in a slightly different place each day.
Pengtuzi
6 months ago
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