Penrose staircase

English Noun en Penrose stairs. en 1984 February Profile of Benoit B. Mandelbrot Monte Davis Omni 0149-8711 9 Can you make a fractal equivalent of the “Auditory Penrose Staircase,” the illusion of a steadily descending tone, by zooming in on a fractal as it branches? en 1989 Penrose Tiles to Trapdoor Ciphers: ...And the Return of Dr. Matrix w:Martin Gardner New York Freeman 9780716719878 2046223M They are the inventors of the famous "Penrose staircase" that goes round and round without getting higher; Escher depicted it in his lithograph "Ascending and Descending." en 2010 The Paradox of Pitch Circularity Diana Deutsch Acoustics Today 6 3 8–14 10.1121/1.3488670 This pitch paradox has been used to accompany numerous videos of bouncing balls, stick men, and other objects traversing the Penrose staircase, with each step accompanied by a step along the Shepard scale. Translations Penrose stairs en eponyms en Artistic works Optical illusions