The article doesn't get into the details of how the LEDs are powered except for "The four barrels power a tiny generator that’s just 8 mm wide and 2.3 mm high, which provides the electric energy to LEDs under the dial." Anyone have any ideas as to how this works?
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Yeah. That I understand. What I would like to know is what this generator looks like. How does it work? How can springs power a generator? I would like to understand how they made a generator that small.
