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A comment on When a Mars Simulation Goes Wrong. Parent comment

Re:When a Mars Simulation Goes Wrong by dooglius on Saturday June 23, 2018 @06:40PM (#17383835)
Martian soil lacks moisture, so grounding things there would be somewhat more complex; the end of https://www.nasa.gov/vision/space/livinginspace/10aug_crackl... has some brief discussion.
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Re:When a Mars Simulation Goes Wrong by sebazzz on Sunday June 24, 2018 @04:19AM (#17385573)
Isn't electrical grounding relative? So, only the electrical components which are directly or indirectly connected to each other need the same relative ground?
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