lauantai 23. huhtikuuta 2016

Numerical Display Sundial

Place a fun spin on the way you tell time with help from this digital sundial. Rather than relying on batteries or electronics, it's mathematically designed to let only certain sun rays pass through it depending on the time of day, allowing it to display the time like a digital clock.

Check it out

$76.77



from ThisIsWhyImBroke.com http://ift.tt/1VOPzO6
via IFTTT

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