The virtual assistant in iOS can do all kinds of stuff, of course. But here are the 16 things we think everyone should try at least once.
In most vertebrates and some molluscs, the eye works by allowing light to enter and project onto a light-sensitive panel of cells, known as the retina, at the rear of the eye. The cone cells (for colour) and the rod cells (for low-light contrasts) in the retina detect and convert light into neural signals for vision.
The retina is the reflective part of the eye. That's why cat's eye reflect so well, their retina are more exp â¦ osed in the night because their pupils (or whatever they are in a cat) open wider than ours exposing more of that mirror at the back, the retina.he nervous system. Your eyes are part of your brain. The majority of. your brain surface is light-sensitive.