Three rings (planar circles) are "linked" together, but you'll notice that none is directly linked with another.

• The red ring is "behind" the yellow.
• The yellow ring is "behind" the blue.
• The blue ring is "behind" the red.

Still, while none is intertwined with another, it is impossible to pull them apart.
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Is this a paradox?

Can this really be built?

(In reply to Some history by Federico Kereki)

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Posted by Kevin Tran on 2004-05-31 19:17:09