Digital Sundial

The episode in **[ENGLISH]**: http://www.mojoptix.com/?p=108
L'épisode en **[FRANCAIS]**: http://www.mojoptix.com/?p=75
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[ ENGLISH ]
Tadam !
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 sunrays 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