Penrose triangle
Oscar Reutersvärd; independently Lionel & Roger Penrose
Three convincing corners. One impossible connection.
Impossible objects / 2008 sculpture
The impossible cuboid
A public sculpture appears to form an impossible cuboid.
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
Wikifrits
Original file & attribution · Public domain
This locally stored image is a Wikimedia Commons rendition (resized or rendered from the source file). The full original is linked from the source record. Gallery previews may be resized or converted to WebP; animated previews show the first frame.
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What is The impossible cuboid?
A public sculpture appears to form an impossible cuboid.
What should I look for in The impossible cuboid?
View larger, then trace one connected edge all the way through the object. Compare the local joins with the whole shape.
What explains The impossible cuboid?
The photograph records a real sculpture from a chosen viewpoint. Alignment makes separate physical features read as a cuboid whose apparent spatial relations cannot belong to the ordinary solid it suggests.
Another way to see it
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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.
