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.
Peripheral Vision. Discover the outer limits of your eyes. Test the limits of your peripheral vision with a homemade version of a protractor. With the help of a friend, you can measure how much you can see out of the corner of your eye. Youâll find that you can detect motion, color, shape, and text at different angles.