The Orb

@inproceedings{Sears2007TheO,
  title={The Orb},
  author={James Sears},
  booktitle={SIGGRAPH Art Gallery},
  year={2007}
}
This fascinating puzzle is called Orb in the USA and Orb-It in the UK. The puzzle consists of a ball with two small rings of beads near the poles, and two larger rings parallel to and near the equator. The four rings have different colours. The bead rings rotate around the ball. The ball itself is divided vertically into two halves. By rotating one half the rings of beads become either one long spiral, or two loops (looking a bit like a tennis ball). In the solution below the spiral position is… CONTINUE READING

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