this post was submitted on 12 May 2026
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xkcd

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xkcd #3244: Pullback Drive

Title text:

"How does the spring not run out almost immediately?" "We pull it back REALLY far."

Transcript:

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Source: https://xkcd.com/3244/

explainxkcd for #3244

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[–] NocturnalMorning@lemmy.world 3 points 1 day ago (1 children)

Bcz springs wear out is my guess. That's the first thing I'd worry about in the design is how many cycles can it handle before performance is degraded. Might be a lot, but even if it's a couple years, people aren't going to be happy when their car performance suddenly drops off right after they finish paying the thing off.

[–] thebestaquaman@lemmy.world 2 points 10 hours ago

You're probably right, at the same time, a spring that isn't overloaded can usually take an absurd amount of cycles: Just think about how long the suspension on a car typically lasts compared to a lot of other parts.