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A comment on Can Repelling Magnets Replace the Spring in a Pogo Stick?. Parent comment

Re:Can Repelling Magnets Replace the Spring in a Pogo Stick? by chii on Monday December 17, 2018 @12:58AM (#18697171)
sterring is electric, but there's always a backup system in case the electronics fail: https://youtu.be/em1O8mz7sF0?t=276
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