They are only claiming 89,000 years, not 89 million. But yeah, probably a few de... | Hacker News

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		rootusrootus on March 29, 2019 \| parent \| context \| favorite \| on: Magnetic Bearings Might Keep Motor Spinning for Mi... They are only claiming 89,000 years, not 89 million. But yeah, probably a few decades is plausible, the battery isn't going to last thousands of years.

caf on March 30, 2019 | [–]

I do wonder how long you could engineer a capacitor to last, though - given you have little constraint on its physical size.

scottlocklin on March 30, 2019 | [–]

The magnet is the weak link. I'm pretty sure the battery will last longer.

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