File:Revolving circles.svg
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| Description |
Français : Les deux cercles semble tourner quand l'observateur se rapproche et s'éloigne du dessin en fixant le point noir central.
Deutsch: Die zwei Kreise scheinen sich zu drehen, wenn der Betrachter seinen Kopf vor- und zurückbewegt und dabei auf den schwarzen Punkt schaut.
English: The two circles seem to rotate when the viewer's head is moving back and forth while looking at the black dot.
Español: Los dos círculos parecen girar si el observador mueve la cabeza hacia adelante y hacia atrás con la mirada fija en el punto negro.
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| Date |
English: 03:33, 15 March 2007 (UTC).
Español: 03:33, 15 de marzo de 2007 (UTC).
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| Source |
Own work |
| Author |
Fibonacci |
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www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue
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| Date/Time | Thumbnail | Dimensions | User | Comment |
| current | 03:33, 15 March 2007 |  | 350 × 350 (4 KB) | Fibonacci | {{Information| |Description={{en|The two circles seem to rotate when the viewer's head is moving back and forth while looking at the black dot.}} {{es|Los dos círculos parecen girar si el observador mueve la cabeza hacia adelante y hacia atrás con la mi |
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