The shape of my foot.

I think the best way to illustrate my analysis of the light is right through photographs. Last night the TV emitted light in my room that was completely dark. At times I could see the outline of my foot that was in front of the television. The light bounced off the back of my foot and I could see the silhouette in front of my TV. After my eyes focus light directly on the television, only I could distinguish my foot at all what was in the fourth, then I tried to focus on other things that were in the room, but I had to wait several seconds that my eyes adapted in the light of the dark.