• JasonDJ@lemmy.zip
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    10 hours ago

    Are they generating more power than they are spending by making the train go? Has Barcelona mastered perpetual motion??

    It’s good thing, sure, but it’s no savior. The blurb makes it sound like it’s a net gain of energy, and that’s impossible. It’s not free energy. It’s just upcycled waste.

      • JasonDJ@lemmy.zip
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        1 hour ago

        Sure, and that’s not a bad thing. But what is revolutionary and newsworthy about what Barcelona is doing?

    • Ilovethebomb
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      4 hours ago

      It’s also the default for commuter trains, they pretty much all do it.