
Description
The image shows how the human eye doesn't always show the reality. The object casting a shadow in the image shows as if the shadow itself has a different shade of grey than the grey outside the shadow; however, in reality they are the same exact shade of grey. To prove this to yourself, copy the image to any paint program and then cut the two squares marked A and B. If you align the two sqaures beside each other you will notice that they are exactly the same color. Enjoy!













