“Up close, you can see that the image is actually black and white. It has coloured lines on top of it. From far away the ...

Brain teasers and optical illusion puzzles can help you prepare ... shoe within a sharp timeline of 12 seconds from the black-and-white frame to prove that you have strong and sharp eyesight.

Op Art, also known as optical art, is a type of art that features optical illusions. The way that lines ... Often these are produced in black and white or highly contrasting colours.

In 2015, a blue and black dress was perceived by many as a white and gold dress. Earlier this year, an optical illusion of a man walking into the snow revealed it was actually a dog walking in the ...