Picture this: You’re sitting on your couch in the dark alone, watching a scary movie. The killer is walking toward an unsuspecting victim, then suddenly jumps out at her. In that moment, the hairs on your body stand up, and you get a shiver down your spine. When you decide to go out for a walk in the crisp autumn air, the same thing happens. And when you put some music on your iPod, and it gets to your favorite part of your favorite song, you get the shivers again, this time with the little goosebumps on... READ ON
The eye chart with the big "E" on top is called a Snellen Chart.