The Necker cube is an optical illusion that was first published as a rhomboid in 1832 by Swiss crystallographer Louis Albert Necker. [1] It is a simple wire-frame, two dimensional drawing of a cube with no visual cues as to its orientation, so it can be interpreted to have either the lower-left or the upper-right square as its front side.

The Necker cube is an optical illusion that consists of a two dimensional representation of a three dimensional wire frame cube. It is one of several well-known figures that, for the viewer, flip back and forth between equally possible perspectives of the object represented.

Apr 6, 2023 · The Necker cube is an optical illusion first developed in 1832 by Swiss crystallographer, Louis Albert Necker. Made from a wire frame, the 2-D drawing makes it hard to have a stable perception...

The Necker Cube Ambiguous Figure is named after its creator, Louis Albert Necker (1786-1861), who first published the illusion in the London and Edinburgh Philosophical Magazine and Journal of Science in 1832.

The Necker cube is an optical illusion that features a simple wireframe drawing of a cube. The cube appears to switch back and forth between two different orientations.

Apr 12, 2025 · The necker cube is an illusion in which a two-dimensional drawing of an array of cubes appears to simultaneously protrude from and intrude into the page. A Necker cube appears on the banner shown in Escher's lithographs "Metamorphosis I" (Bool et al. 1982, p. 271; Forty 2003, p. 39), "Cycle" (Bool et al. 1982, p. 274), and "Convex and Concave".

The Necker cube is an optical illusion that demonstrates the brain's tendency to interpret ambiguous visual information in multiple ways. It is a wireframe cube that can be perceived as either facing one way or the other, highlighting the brain's active role in interpreting sensory input.

Nov 19, 2008 · Cube A is ambiguous -- the true Necker cube. Cube B and cube C show the two ways you can perceive the Necker cube: either the bottom of the cube is in front, or the top is in front.

Jun 15, 2017 · Although less widely known than the popular two-dimensional version, the 3D Necker cube is a surprisingly rich model for psychophysical investigation.

The Necker cube has interested observers from many disciplines, because it seems to allow decoupling of seeing and perceiving: Although the image remains identical, the percept changes.