33 Illusions That Will Bend Your Mind

3. Rolling Rice

Image source: www.psy.ritsumei.ac.jp

Peripheral drift tricks the brain into seeing movement based  in part on how we perceive light and dark and in part on how our eye moves.

4. Under Or Out?

Image source: www.dailymail.co.uk

Erik Johansson uses hundreds of images to make one picture using digital alteration software. (Wait til you see his work in #19.)