• JohnDClay@sh.itjust.works
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    1 year ago

    That energy could still be going somewhere else or used to make hydrogen. Plus making the cards is pretty material and energy intensive.

      • JohnDClay@sh.itjust.works
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        1 year ago

        The atmosphere of earth is 0.000055% hydrogen, so it’s not common. But it’s useful because it’s an easily transportable energy storage medium.