Mind concentration tips, articles and software

illusions pictures

Color illusions
It has been known for about one hundred years that when the image, consisting of light and dark areas, appears on the retina, the light from brightly illuminated areas as if spills over to the dark spots. This phenomenon is called irradiation.
Color illusions
Color of horses

Possibly, this would seem strange to you, but the horses are completely identical both in color and in tint. You can easily check it! And they look different because of the illusion, arising due to the contrast of the background.

More illusions