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A comment on Battery-electric “Infinity Train” will charge itself using gravity (2022). Parent comment

Re:Battery-electric “Infinity Train” will charge itself usin... by fbdab103 on Monday July 31, 2023 @08:41PM (#36950891)
What about all of those open pit mines? Surely some of them have access to a lower elevation location where the water could be piped. Or, two adjacent pit mines.
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