Something for a rainy afternoon..here are some of the best illusions I have seen.
1. The 2 crosses in the center are the same gray color, but they appear blue and yellow.
http://www.echalk.co.uk/amusements/OpticalIllusions/colourPerception/colourPerception.html
2. Close one eye and concentrate at the cross for 15 secs.
3. You are feeling sleeeppyy....
1. The 2 crosses in the center are the same gray color, but they appear blue and yellow.
http://www.echalk.co.uk/amusements/OpticalIllusions/colourPerception/colourPerception.html
2. Close one eye and concentrate at the cross for 15 secs.
3. You are feeling sleeeppyy....