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Florian Dussopt & Julie Girard designed this desk clock that’s powered by one of my favorite early chemistry experiments: the Citrus Clock has zinc and copper electrodes under the lemon halves and through oxidation and electrolysis, powers the clock. I bet it makes your desk smell nice, too. Via Core77.

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Becky Stern

Becky Stern is head of wearable electronics at Adafruit Industries. Her personal site: sternlab.org


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