Re:Slightly offtopic
by
LittleBigLui
·
· Score: 4, Informative
Think about it. You correctly identified rays as going THROUGH the subject, to a hypothetic receptor on the other side. Obviously, for an image to manifest, the amount of energy that moves through the subject has to vary, otherwise the image would be all-white (or all-gray). Hence, we have some of the rays moving straight through, and the rest of the rays being scattered away. Some of those will be going straight back to where they originated from. Hence, you get just the same image (well, inversed) if you place the receptor right at the source.
Think about it. You correctly identified rays as going THROUGH the subject, to a hypothetic receptor on the other side. Obviously, for an image to manifest, the amount of energy that moves through the subject has to vary, otherwise the image would be all-white (or all-gray). Hence, we have some of the rays moving straight through, and the rest of the rays being scattered away. Some of those will be going straight back to where they originated from. Hence, you get just the same image (well, inversed) if you place the receptor right at the source.
Free as in mason.