Penrose triangle
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The Penrose triangle, also known as the Penrose tribar, the impossible tribar, or the impossible triangle, is a triangular impossible object, an optical illusion consisting of an object that can be de
A 3D-printed version of the Reutersvärd Triangle illusion
Impossible Triangle sculpture, Gotschuchen, Austria
Real Penrose Triangle, Stainless Steel, by W.A.Stanggaßinger, Wasserburg am Inn, Germany. This type of impossible triangle was first created in 1969 by the Soviet kinetic artist Vyacheslav Koleichuk.
Roger Penrose
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Sir Roger Penrose is an English mathematician, mathematical physicist, and philosopher of science. He is Emeritus Rouse Ball Professor of Mathematics at the University of Oxford, an emeritus fellow of
Penrose in 2011
Predicted view from outside the event horizon of a black hole lit by a thin accretion disc
Penrose in 1978
Penrose at a conference c. 2011