Questions with the keyword 'optical'

• http://www.michaelbach.de/ot/fcs_hollow-face/index.html ^^^^^^^ does something in our brains make this happen so we by okelly to Suzi, Tim Comments: (so far, 4s comments )
• when we see a mind game its difficult to understand at first but after we’ve been told what it is why does or brain by okelly to Damien, Rachael, Suzi, Tim Comments: (No comments so far )
• how do optical illusions work? by maevelewisxo and 5 others. to Damien, Rachael, Simon, Suzi, Tim Comments: (No comments so far )