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xkcd #3244: Pullback Drive
(imgs.xkcd.com)
Title text:
"How does the spring not run out almost immediately?" "We pull it back REALLY far."
Transcript:
Transcript will show once it’s been added to explainxkcd.com
Source: https://xkcd.com/3244/
This would have been cool for myth busters to try out.
Well, I think it's clear that this would work. The only question is what distances it could reach? 100m? a kilometer? more?