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  1. One must allow one end of the ring to fall first when releasing it such that it begins a rotation which catches the chain, thusly wrapping the chain around the ring.

  2. Just started reading “Seveneves” by Neil Stephenson: there’s a section near the beginning where someone has to use snakelike drones in space to snag a plastic bubble with a cosmonaut inside. The solution is fairly similar to this gif and helped me to understand its description much better.
    Good post.

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