Designer Vadim Kibardin created this caseless clock, placing the four individual digits on a wall. A light sensor switches the numerals from black to white, displaying the correct time, day or night.
via Black & White Clock uses OLEDs, looks simply stunning | DVICE.
They’re real pretty sure, but how are they powered? batteries? how long would a charge hold for? Honestly, I let clocks go for weeks after their batteries die, I doubt I would do much better with these…
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