this is why the battery tech in the Aristillus novels is micro flywheels in a vacuum chamber using magnetic bearings : high energy density (likely still not enough to get a ship to the moon; I did the calculations and then fudged a bit)https://twitter.com/robinhanson/status/1377709117070929922 …
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Replying to @Atrosto
if the vacuum chamber is breached (e.g. in a crash landing), then the flywheels are pushed out of their magnetic bearings and hit each other, and hit the walls, and you start a chain reaction of exploding pieces
1:41 PM - 1 Apr 2021
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