Penrose triangle
Oscar Reutersvärd; independently Lionel & Roger Penrose
Three convincing corners. One impossible connection.
Impossible objects / 2024 drawing
Impossible beam construction
Rectangular beams connect in ways that cannot agree.
TRY THIS
View larger, then trace one connected edge all the way through the object. Compare the local joins with the whole shape.
THE IMAGE IN THIS ARCHIVE
Mabit1
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Download imageFrequently asked questions
What is Impossible beam construction?
Rectangular beams connect in ways that cannot agree.
What should I look for in Impossible beam construction?
View larger, then trace one connected edge all the way through the object. Compare the local joins with the whole shape.
What explains Impossible beam construction?
Trace the edges across each apparent join and compare the front-facing and side-facing surfaces. The whole construction contradicts the locally convincing parts.
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Impossible cube
M. C. Escher; modern redraw by 4C and Belbury
A familiar cube frame acquires an impossible set of overlaps.
