While beautiful, the shape of the sundial’s curved fins is strictly pragmatic. The designers feed solar path cycle data into an algorithm that creates optimized geometry corresponding to each hour of daylight. The final form resembles flower petals that trace the direction of the sun’s rays.
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The sundial can be used 365 days of the year and has cutouts to show the time of day in digit form. The designers have set up the first 3D-printed sundial prototype in Amsterdam.