Creative 3D Digital Sundial
A Sundial displaying the time inside its shadow, with actual digits! There is a tiny bit of magic inside...
No batteries, no motor, no electronics... It's all just a really super-fancy shadow show. The shape of the sundial has been mathematically designed to only let through the right sun rays at the right time/angle. This allows to display the actual time with sunlit digits inside the sundial's shadow.
The sundial displays time (with actual digits !!) from 10:00 until 16:00, updating every 20 minutes.
You can precisely adjust the displayed time simply by rotating the gnomon (the magic box that displays time). So you can even adjust for Daylight Saving Time.
Hardware for assembly is included.
To get the brightest display, try to set the angle between the ground and the gnomon equal to:
-- in spring and summer: your latitude - 10°
-- in fall and winter: your latitude + 10°
You can fine tune the time displayed by rotation the gnomon around the top-most screw, for example to adjust for Daylight Saving Time.
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