Geometry in optical illusions.
The illusion of Muller-Lyer
Two segments of the same length are altered the perception we have of them by adding other segments in the form of an arrow at their ends, so that one of them seems longer.
Ehrenstein figure
It was discovered in 1925. The effect of concentric circles makes us see the sides of the square not straight.
Cafewall
The illusion called Cafewall was discovered on the facade of a café in Bristol by Richard Gregory and collaborators. This is a representation of the drawing of the façade. The lines separating the rows of squares do not seem horizontal but inclined, no doubt because the alternation in the position of the black and white squares.
Two segments of the same length are altered the perception we have of them by adding other segments in the form of an arrow at their ends, so that one of them seems longer.
It was discovered in 1925. The effect of concentric circles makes us see the sides of the square not straight.
The illusion called Cafewall was discovered on the facade of a café in Bristol by Richard Gregory and collaborators. This is a representation of the drawing of the façade. The lines separating the rows of squares do not seem horizontal but inclined, no doubt because the alternation in the position of the black and white squares.
Comentarios
Publicar un comentario