Impossible Joinery

Impossible joinery

Three impossible ways to combine four bars.

See also

Freemish Crate, Impossible Figure, Penrose Triangle, Tribox

This entry contributed by Margherita Barile

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O'Beirne, T. H. Cover of Puzzles and Paradoxes. London: Oxford University Press, 1965.

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Impossible Joinery

Cite this as:

Barile, Margherita. "Impossible Joinery." From MathWorld--A Wolfram Web Resource, created by Eric W. Weisstein.

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