In case you tried to take pleasure in a e book from throughout the room, the textual content would seem too small to learn. Nonetheless, while you transfer that very same e book nearer, immediately, the textual content turns into simple to learn. The scale of the textual content by no means modifications, however the picture is nearer to your eye, so it seems bigger. A telescope merely makes use of lenses and mirrors to focus a faraway picture on a mirror that’s only some inches out of your eye. As soon as the picture is shut, just like the textual content in that e book, it seems bigger and turns into simpler to see.