Image:Impossible staircase.svg

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Impossible_staircase.svg‎ (SVG file, nominally 372 × 283 pixels, file size: 4 KB)

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[edit] Summary

Description

A "Penrose stairs" optical illusion
Source

own work
Date

2005-05-19
Author

Philip Ronan
Permission
(Reusing this image)

see below

[edit] Licensing

I, the copyright holder of this work, hereby publish it under the following licenses:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation license, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation license".

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Creative Commons License
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File history

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Date/TimeDimensionsUserComment
current13:44, 30 May 2006372×283 (4 KB)Sakurambo (== Summary == {{Information| |Description=A "Penrose stairs" optical illusion |Source=own work |Date=2005-05-30 |Author=Philip Ronan |Permission=see below |other_versions= }})
13:51, 19 May 2006333×250 (4 KB)Sakurambo ({{Information| |Description=A Penrose staircase (optical illusion) |Source=Own work |Date=2005-05-19 |Author=[[User:Sakurambo|Philip Ronan |Permission=See below |other_versions= }})
13:32, 19 May 2006333×250 (4 KB)Sakurambo ({{Information| |Description=A "Penrose stairs" optical illusion |Source=own work |Date=2005-05-19 |Author=Philip Ronan |Permission=see below |other_versions= }})
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