Necker cube

English

The Necker cube.

Etymology

The Necker cube was first published as a rhomboid in 1832 by Louis Albert Necker.

Noun

Necker cube (plural Necker cubes)

1. An optical illusion consisting of a wireframe drawing of a cube, where a given face may be perceived as being either on the front or the back of the cube.

See also

• Penrose triangle