A lithium battery powersmost of our favorite devices—a charge every twenty-four hoursfor typical usage suffices.Billions of tiny transistorsenable these wonders of science:video calls between sisters,virtual briefings with clients,Wi-Fi and Bluetooth connections,a camera for taking a photo,GPS-guided directionsin Kentucky, Kyiv, or Kyoto,apps that are snappy and nifty,a podcast for every headphone,a live-stream for every Swiftie(as long as they’re not in a dead zone).Diversions supremely accessible!Conveniences almost unending!Activity near-irrepressible—recommending and friending and trending!If the power grid ever stops humming,these gadgets will soon be left juiceless—each marvel abruptly becoming…
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