image/svg+xml
Openclipart
Optical Illusion (2)
2008-02-23T10:34:31
Illusion discovered in 1860 by physicist JC Poggendorff.\nШелÑга, Ð’.Ð’., Глоточкина, Ð.Д., Платонова, К.К. (1972). Ð’Ð¾ÐµÐ½Ð½Ð°Ñ Ð¿ÑихологиÑ. МоÑква.
https://openclipart.org/detail/14747/optical-illusion-(2)-by-cibo00-14747
cibo00
externalsource
human perception
lines
optical illusion