Image: Poggendorff illusion
Size of this PNG preview of this SVG file: 302 × 225 pixels. Other resolution: 320 × 238 pixels.
Original image (SVG file, nominally 302 × 225 pixels, file size: 522 bytes)
Description: Poggendorff illusion.
Title: Poggendorff illusion
Credit: Own work
Author: Fibonacci.
Permission: GFDL
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC BY-SA 3.0
License Link: http://creativecommons.org/licenses/by-sa/3.0/
Attribution Required?: Yes
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