Waterfall (M. C. Escher)
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Waterfall is a lithograph by the Dutch artist M. C. Escher, first printed in October 1961. It shows a perpetual motion machine where water from the base of a waterfall appears to run downhill along th
Escher Waterfall
FWF Samuel Monnier
Impossible object
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An impossible object is a type of optical illusion that consists of a two-dimensional figure which is instantly and naturally understood as representing a projection of a three-dimensional object but
Waterfall (M. C. Escher)
…visual paradox. The watercourse supplying the waterfall (its aqueduct or leat) has the structure of three Penrose triangles. A Penrose triangle is an impossible object designed by Oscar Reutersvärd in 1934, and found independently by Roger Penrose in 1958. The image depicts a watermill with an elevated aqueduct and…
A 3D-printed version of the Reutersvärd Triangle illusion, its appearance created by a forced perspective
As the viewing angle changes of this sculpture in East Perth, Australia, a Penrose triangle appears to form.