So I took the iPhone 17e with me, to Kota Kinabalu on a plane, then to George Town, on a train. I needed to answer the ...
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A solar cell moonlights as an LED, both absorbing and emitting light more efficiently
Imagine a display that harvests ambient light when it is not actively in use, offsetting some of its own energy consumption. Materials physics shows that this is possible; the same semiconductor ...
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